A List of Modern Sidemount Diving Systems
by Andy Davis
There are an increasing number of commercial ‘off-the-shelf’ sidemount systems available to purchase. These typically fall into one of two categories; minimalist (Hogarthian-inspired) rigs and cold-water rigs.
The minimalist rigs, sometimes called “British configurations” typically feature a base harness that uses lumbar and shoulder plates, to which a flat bladder is attached. These are primarily popular in warm-water regions, where aluminum cylinders will be used. Their advantages are that they are very small, thus suitable for diving in confined spaces/tight penetrations, and that they are very lightweight/low-bulk for travel. Attachment points for cylinders are typically on the waist belt and butt-plates are omitted.
Cold-water sidemount diving systems, sometimes referred to as “American configurations”, tend to have more bulk, but offer sufficient lift for use with multiple steel cylinders. Attachment points for cylinders are typically via a ‘butt-plate’ with rails. Cold-water rigs are also more likely to offer integrated buoyancy redundancy. Some sidemount BCDs are also designed to be ‘hybrid’; able to convert between sidemount and backmount roles. They typically use a soft-backplate that has grommits for attaching a single-tank adapter, backmount doubles or directly fitted with cam-bands.
For more information read: The Two Schools of Sidemount Diving Heritage
Some manufacturers (for instance, Hollis and DiveRite) also offer sidemount BCDs with either a top or bottom (left) mounted low-pressure inflator hose. The top mounted hose may be more familiar to novice sidemount divers transitioning from conventional back-mount BCDs (thus marketed as ‘blue water’ or ‘open water’ design). The bottom mounted LPI is typically popular with overhead environment divers, as it offers superior protection from abrasion/impact/entanglement; it is thus marketed as a ‘tec’ or ‘cave’ configuration. In many other cases, the LPI is interchangeable by the diver, between top/bottom position (when there is a pull-dump located on the upper wing).
Contents
- 1 A List of Modern Sidemount Diving Systems
- 1.1 Agir-Brokk Ratatosk
- 1.2 Akuana Hummingbird 1
- 1.3 Akuana Hummingbird 2
- 1.4 Apeks WSX-25
- 1.5 Apeks WSX-45
- 1.6 Aquatec My Sidemount
- 1.7 Amphibian Gear Transformer
- 1.8 Aquamundo SM
- 1.9 AudaxPro ‘Point Break’
- 1.10 Custom Divers Rhino
- 1.11 Deco Sidemount
- 1.12 DiveRite Nomad LS
- 1.13 DiveRite Nomad XT
- 1.14 DiveRite Nomad LTZ
- 1.15 DiveRite Nomad JT
- 1.16 Dive System Manta Sidemount
- 1.17 Eques Sidemount
- 1.18 FinnSub ‘Fly Side’
- 1.19 Freedom Sidemount
- 1.20 Golem Gear Armadillo A2 and S
- 1.21 Halcyon Contour
- 1.22 Halcyon Zero Gravity
- 1.23 Helium-Dive He2 Sidemount
- 1.24 Helix Sidemount
- 1.25 HOG Sidemount
- 1.26 Hollis SMS100
- 1.27 Hollis SMS75
- 1.28 Hollis SMS50
- 1.29 Hollis SMS Katana
- 1.30 Hollis SMS Katana 2
- 1.31 IST Dolphin Tech SMB-21
- 1.32 IST Dolphin Tech SMB-42
- 1.33 Kamaleont Sidemount
- 1.34 Manta Industries / Highseas Millwork Sidemount
- 1.35 Mares XR Pure Light
- 1.36 Northern Diver 42
- 1.37 OMS Sidestream
- 1.38 OMS Tesseract Wing/Profile ‘Tec’ Adapter
- 1.39 OMS REC Sidemount Adapter
- 1.40 Oxycheq Recon
- 1.41 Poseidon Sidemount
- 1.42 Razor 2
- 1.43 Scubapro X-Tek Sidemount
- 1.44 ScubaOne Mangusta / Mangusta18
- 1.45 ScubaOne M90 Sidemount
- 1.46 Sopras Tek/Rec 1225
- 1.47 Sopras Tek Nomad Kevlar
- 1.48 Scuba Force Blade
- 1.49 Scuba Force Toddy-Style
- 1.50 SEAC KS01 Sidemount
- 1.51 Sea Monster Sidemount
- 1.52 SF Tech Sidemount
- 1.53 SistemA Sidemount
- 1.54 Sub-Gravity Diamond Sidemount System
- 1.55 Sublevel Sidemount
- 1.56 Sump UK Sidemount
- 1.57 Tecline Avenger 16
- 1.58 Tecline Side 16
- 1.59 Toddy-Style TS Sidemount
- 1.60 UTD – Z-System
- 1.61 UTD Alpha/Delta Hybrid
- 1.62 White Arrow S-Wing
- 1.63 X-Deep Stealth 2.0 ‘Classic’
- 1.64 X-Deep Stealth REC Wing
- 1.65 X-Deep Stealth TEC Wing
- 2 Stand-Alone Sidemount Harnesses
- 2.1 Darkside Harness
- 2.2 Farr Explorer 1 Harness
- 2.3 Warmbac ASM Sidemount Harness
- 2.4 Kent Tooling Sidemount Harness
- 2.5 DiveRite Transpac XT Harness
- 2.6 DiveRite Transpac XT Tech Harness
- 2.7 Santiago Ultimate Harness
- 2.8 Innodive Sidemount Harness
- 2.9 Deco Sidemount Harness
- 2.10 SUMP UK Sidemount Harnesses
Agir-Brokk Ratatosk
The Ratatosk sidemount follows a similar minimalist design to the Razor, Stealth, Z-Trim and Aquamundo. It has a ‘tear-drop’ shaped bladder and features the ‘SiMo’ design bungee mounting (based on the UTD approach). The lumbar and shoulder plates are available in either 3mm or 6mm stainless steel. More Details/Review here
- Buoyancy: 24lbs/11kg
- Material: Outer – 1000 denier cordura | Inner – 400 denier cordura
- Weight: Not known
- Manual: Not yet available (Agir-Brokk Manuals Page)
- Manufacturer Link: Agir-Brokk Ratatosk
[quads id=1]
Akuana Hummingbird 1
The Akuana Hummingbird 1 is a quite generic design, that’s sold by a few different companies under different names (see also the Aquamundo sidemount).
- Buoyancy: 22lbs/101kg
- Material: 1680D nylon
- Weight: 1,9kg
- Manual: Not yet available
- Manufacturer Link: Akuana Hummingbird 1
[quads id=1]
Akuana Hummingbird 2
Set for release later in 2019, the Akuana Hummingbird 2 looks like it borrows much of its design from the Razor 2.0 – in a slightly minimized size (only 32lb of buoyancy). It should have an economical price, making it an option for those on a strict budget.
- Buoyancy: believed to be 32lbs/15kg
- Material: Not yet known
- Weight: Not yet known
- Manual: Not yet available
- Manufacturer Link: Not yet available
[quads id=1]
Apeks WSX-25
The Apeks WSX-25 features 27lbs of buoyancy, custom sliding D-rings and a robust ‘armoguard’ material wing. It comes complete with a butt ancillary pouch and is based on the 2-plate (butt and lumbar) harness system with 3x 3kg spine weight pockets.
When trialling the wing, I found that the sliding D-rings had a tendency to ‘migrate’ up along the waist-belt when aluminium cylinders were buoyant. This can be resolved somewhat by adding a stronger bungee material to the D-rings. I also found the belt buckle was very heavy and quite tough to manipulate. I’d love to see a more refined sliding-gate buckle used with the system – as the rest of the metal hardware is of very good quality.
I managed to put some scratches into the wing material when squeezing through some very tight wreck restrictions – but that’d happen with most sidemount rig materials. I don’t think the wing came close to getting a puncture. I did like that the rear ‘tail’ OPV was concealed under some fabric to help protect it.
The rig was initially quite hard to assemble. It’s a fiddly job because the harness makes use of custom allen nuts/bolts at several locations. I don’t really see any advantage with these attachments over regular nylock bolts.
See my full pre-release review here: Apeks WSX-25 Sidemount
In late 2016, a redundant bladder option, of the same material and buoyancy will be released.
- Buoyancy: 27lbs / 12kg (+ interchangeable left/right LPI option)
- Material: Armoguard material (10x more abrasion resistance than cordura)
- Weight: Not yet available
- User Manual: Apeks WSX-25 User Manual
- Manufacturer Link: Apeks WSX-25 Sidemount
[quads id=1]
Apeks WSX-45
The Apeks WSX-45 is expected to be released in late 2016. The harness system will be identical to the WX-25, but the larger wing features 45 lbs/20kg of buoyancy – making it more suitable for mixed-gas technical diving. Like the WSX-25 it has reversible left/right LPI and OPV on the lower corners, along with an OPV at the tail of the wing. An addition that the WSX-25 doesn’t have is an inflator connection on the inside left shoulder. There will also be an add-on redundant bladder option with the same materials and dimensions.
- Buoyancy: 45lbs / 20kg
- Material: Armoguard material (10x more abrasion resistance than cordura)
- Weight: Not yet available
- User Manual: Not yet available
- Manufacturer Link: Not yet available
[quads id=1]
Aquatec My Sidemount
No… this REALLY is a sidemount system. The Aquatec ‘My Sidemount’ was thought to be a joke by the sidemount community when it was first released. It is certainly a novel concept – merging a BCD with a dryland backpack. But why?!?
Apparently, you can remove the backpack cover to reveal a slimline wing underneath. It comes with an optional oral-inflate secondary bladder.
- Buoyancy: 26.5lbs / 12kg
- Material: No details available
- Weight: Not yet available
- User Manual: Not yet available
- Manufacturer Link: Aquatec My Sidemount
[quads id=1]
Amphibian Gear Transformer

- Buoyancy: 30 lb / 14.5 kg
- Material: Outer: Cordura (1680 g) / Inner: Nylon (420 g)
- Weight: Varies – modular options
- Manual: Not known
- Manufacturers Link: Amphibian Gear Sidemount (Russian)
[quads id=1]
Aquamundo SM
Produced by locally popular Philippines-based diving manufacturer ‘Aquamundo’, the SM is a minimalist warm-water sidemount configuration, similar in approach to the Z-Trim. It is sold complete as a complete unit, with all necessary ancillaries. I’ve dived the Aquamundo sidemount comfortably with 4x AL80s on technical dives… and subjected the rig to some quite hard demands when running technical wreck penetration courses. The rig is exceptionally robust.
More details/my review here
- Buoyancy: 21lbs / 9kgs
- Material: 1000 denier nylon (special 420 denier ‘lightweight’ nylon ‘Rescue Team version available)
- Weight: Not known
- Manual: Not available online
- Manufacturer Link: Aquamundo Sidemount
[quads id=1]
AudaxPro ‘Point Break’
The Italian manufactured ‘Point Break’ sidemount is available in 9 colors (red, yellow, blue, black, white, orange, gray, turquoise and fuchsia) and provides 8kg of buoyancy.
- Buoyancy: 18lb / 8kg
- Material: Outer: nylon TEXTANE A / B 210 with polyamide coating HT Inner: nylon TEXTANE A / B 210
- Weight: 1.9kg / 4.2lb
- Manual: Not yet available
- Manufacturer Link: Audaxpro ‘Point Break’
[quads id=1]
Custom Divers Rhino
The Custom Divers Rhino is a hybrid sidemount/backmount wing system that weighs only 2.50kgs. It can be converted for sidemount or backmount diving use. It has 28lbs of buoyancy and is designed to be highly flexible for individual customization (for instance, it has 5 alternative mounting points for the LPI). More Details / Review here
- Buoyancy: 28lb / 13kg Sealed single compartmental system.
- Material: “super fabric with armor technology” (*No further details given – believed to be cordura/urethane)
- Weight: 5.5lb / 2.5kg
- Manual: Custom Divers Rhino Datasheet
- Manufacturer Link: Custom Divers Rhino Sidemount System
Deco Sidemount

The Deco Sidemount bladder can attach to any sidemount harness or be worn stand-alone via bungees. With 22lbs/10kgs of buoyancy it will easily float two AL80 cylinders for recreational sidemount; or can be used in conjunction with an existing sidemount rig, to provide redundant lift.
The bladder and harnesses (and individual hardware components) are available separately – allowing sidemount divers to pick an exact rig specification to suit their preferences and needs. The bladder is available to purchase without an LPI (for those wishing to fit their own), or with an LPI with either 13′, 16″ or 19″ corrugated hose length. That’s a purchase option that I feel more sidemount rig manufacturers would offer.
There are two harnesses available; a traditional harness (shoulder straps to the rear lumbar plate) and an ‘H’ style harness (shoulder straps routed to front of harness via ‘T’ attachments).
Both harnesses are lightweight and minimalist; providing all the functionality that you’d need with zero superfluous clutter. Many other types of sidemount wing could be attached to this harness. The harness is supplied with 6ft of 5/16th bungee and two bolt-snaps, so the diver can rig out their own tank bungee method (loop, sliding loop, independent, ‘old school’ etc).
See my full review here: Deco Sidemount Review
- Buoyancy: 22lb / 10kg
- Material: 1000 Denier Cordura with urethane coating
- Weight: Wing only 1.3lbs/0.462kg
- Manual: Not known
- Manufacturers Link: Deco Sidemount
[quads id=1]
DiveRite Nomad LS
The latest (September 2016) release from DiveRite. The Nomad LS incorporates a more streamlined design that also helps keep most of the buoyancy over the hips for better trim. It comes with a deluxe-type harness, but this is removable if the diver wanted to fit a more minimalist simple webbing harness. The LPI and OPV are fitted into the inside of the wing, for greater protection in overhead environments.
There is an option to buy the Nomad LS with an extra 10 lbs. (4.5 kg) redundant bladder. The wing also uses a newly designed ‘Adjustable Bungee System’, which is claimed to allow swifter user adjustment without typing knots.
It’s not clear from the DiveRite website whether the butt-plate is removable. If it’s not removable then it limits rear mounting options for divers using aluminium cylinders. If using Loop bungees, then D-rings located at the wing-waist attachment point are probably sufficient. You’d need to add extra D-rings at the front of the waist-strap for when aluminium cylinders became buoyant.
- Buoyancy: 35lbs/15.8 kg
- Material: Outer -SuperFabric™ material with double ply 600 denier fabric. Inner- Heavy duty 420 denier nylon laminated
- Weight: Med: 5.7 lbs. (2.59 kg)
- User Manual: Not yet available online
- Manufacturer Link: DiveRite Nomad LS
[quads id=1]
DiveRite Nomad XT
- Buoyancy: 50lbs/22.6 kg
- Material: Outer – SuperFabric brand technology & 1000 denier Cordura | Inner – 210 denier nylon laminate
- Weight: Med: 9.375lbs (4.25kg), Lg: 9.625lbs (4.36kg), XL: 10.06lbs (4.56kg)
- User Manual: Nomad XT User Manual
- Manufacturer Link: DiveRite Nomad XT
[quads id=1]
DiveRite Nomad LTZ
The DiveRite Nomad LTZ is the improved successor to the old Nomad LT Extreme. Made with even more robust materials and now offering a (limited) integral dual-bladder, the LTZ continues the Florida Cave evolution of sidemount design – but with a relatively minimalist feel. The LPI and OPVs have been moved inside of the wing, where they are significantly more protected. I’m glad to see that the inflator now routes from the lower left wing – as this is over-riding preference of the vast majority of sidemount divers; and makes prudent sense from a hose routing perspective.
DiveRite have retained both a right-side and top-mounted OPV still, but this is discretely placed inside the upper wing and accessed by a pull-dump on the harness. There is the option to buy the rig with a limited redundant bladder, which is just under half the capacity of the primary bladder. As usual for DiveRite, the rig ships with a ring bungee system (DiveRite calls this the ‘loop bungee’, but that causes confusion with the different loop bungee method most sidemount divers refer to). The rig has angled, low-profile D-rings on the shoulders and hips; along with a butt-plate/rails at the rear.
- Buoyancy: 35lbs / 8kg (optional redundant lift capacity bladder with 10 lbs/4.5 kg)
- Material: Outer – SuperFabric material with double ply 600 denier fabric| Inner – 420 denier nylon laminate
- Weight: 5.75 lbs/2.61 kg
- User Manual: Not available
- Manufacturer Link: DiveRite Nomad LTZ
[quads id=1]
DiveRite Nomad JT
The Nomad JT was discontinued in Feb 2013. It utilized a ‘modified’ deluxe transpac-like harness, with a 50lb donut wing, an off-set inflator and three OPVs (top and both sides). It utilises a unique ‘daisy chain’ attachment at the diver’s back for attachment of sidemount bungees – preventing a hernia effect on the bladder. It is supplied with ‘ring type’ bungees, which can add security for water entries and in-water fitting of the cylinders, but can also be used with standard sidemount bungees.
[quads id=1]
Dive System Manta Sidemount
The Manta sidemount is a hogarthian-inspired, minimalist, sidemount system available in a number of options. It can be bought with a single (30lb/15L) wing or a dual/redundant (50lb/23L) wing. The wing fabric is 1000 denier nylon (kevlar reinforced wing is also an option). The harness features a custom-designed movable D-ring for cylinder trim control. More details / review here
- Buoyancy: Separate Twin Bladder – Primary bladder: 23kg /50lb | Secondary bladder: 22kg /48lb
- Material: Cordura® 1000 deniers ( Kevlar® optional ) (*believed to be single-layer)
- Weight: Not known
- Manual: Not available
- Manufacturers Link: Dive System Manta Sidemount
Eques Sidemount

The Eques Sidemount system was developed by Polish cave divers; Richard Paluszkiewicz, Patrick Widmann, Christopher Starnawski and Mirek Wolski – who were also involved in the development of the X-Deep Stealth 2.0. The Eques shows that lineage. It was originally designed in 2000 and has been in use with the Tatra mountain rescue team.
- Buoyancy: 27lb / 12kg
- Material: Cordura
- Weight: <3kg
- Manual: Not available
- Manufacturers Link: cavesidemount.com
[quads id=1]
FinnSub ‘Fly Side’

- Buoyancy: 35lb / 16kg
- Material: 500 PU Cordura Inner / 2000 Cordura Outer
- Weight: Varies depending on backplate option
- Manual: Not known
- Manufacturers Link: FinnSub
[quads id=1]
Freedom Sidemount

- Buoyancy: 16kg /36lbs (18.5kg / 41lb version available)
- Material: Details not available
- Weight: Details not available
- Manual: Details not available
- Manufacturer Link: Freedom Dive Systems
[quads id=1]
Golem Gear Armadillo A2 and S
The Armadillo is a sidemount specific rig, with integral buoyancy compensator and limited adjustment harness. It has an inter-changeable inflator/OPV, allowing divers to decide how they want it to be configured. The harness can be re-configured to allow incorporation of a climbing harness (rather than standard waist belt). A short fitting model (S) has also been released. More Details / Review here
- Buoyancy: 35lb / 16kg
- Material: Outer – 2000 denier Cordura. | Inner bladder – RF welded Cordura 560 with PU coating.
- Weight: Not known
- Manual: Armadillo A2 User Manual
- Manufacturer Link: Golem Gear Sidemount
[quads id=1]
Halcyon Contour
The Halcyon sidemount offers 50lbs of buoyancy through a pre-shaped wing that keeps buoyancy lower in the rig (where it is ideal for sidemount). It heavily features cave-diving configuration modifications developed by Edd Sorenson. It has a reinforced top section to offer more ruggedness on overhead environment dives. More Details/Review here and another good review here
- Buoyancy: 50lb / 23kg (rumored 40lb/18kg version to come)
- Material: TBC. Expected: Outer – 1000 denier urethane coated nylon | Inner – 420-Denier urethane-coated nylon. Triple-layer top cover
- Weight: Not known
- Manual: Not yet available
- Manufacturer Link: Halcyon Contour
[quads id=1]
Halcyon Zero Gravity
The Halcyon Zero Gravity sidemount is supposedly designed for the warm-water diver using AL80 cylinders – and in that respect, it’s a major failure; not grasping the fundamental principles of aluminium cylinder diving.
The design borrows a little from the XDeep Stealth Rec – configuring a U-shaped bladder beneath a flat plate on the upper back. Simply borrowing a bladder design but not integrating that onto a Mexican-style harness with hardware for AL tanks isn’t going to work though.
Disappointingly, this is just another inflexible ‘Florida-style’ rig making false claims about its functionality for aluminium tank diving.
American manufacturers need to cease their blinkered approach to warm-water sidemount design and, perhaps, actually just consult with sidemount experts who use aluminium cylinders as their primary method. There are specific principles that apply for aluminium cylinder configuration, and I have yet to see an American sidemount manufacturer who appreciates them.
The Zero Gravity has built-in, but moveable, rails on the upper-bottom of the wing; that are about as much use as a chocolate frying-pan for divers using aluminium cylinders.
Whenever the bladder is filled or dumped, the height of the butt rails will vary. So there’s no chance of ever getting a consistently good cylinder trim.
There are some D-rings on the waistbelt, but these are fixed in a set position where they secure the lower edges of the wing. In short, out-of-the-box there is zero means to attach aluminium cylinders front and rear on the waistbelt. You’ll have to go shopping for some extra D-rings and retainers, I am afraid.
- Buoyancy: TBC
- Material: TBC.
- Weight: Not known
- Manual: Not yet available
- Manufacturer Link: Not yet on site
[quads id=1]
Helium-Dive He2 Sidemount
The He2 sidemount is manufactured by the Russian company Helium-Dive. At first glance, it looks a lot like the Apeks sidemount. It has a weight pocket system on the inside of the wing, capable of holding up to 12kg of lead. The hardware is all titanium – reducing the overall weight of the rig, but it’ll probably be expensive. At present, the website is only in Russian, so I’ve got limited details on the system.
- Buoyancy: 37lb / 17kg
- Material: 1100d Cordura / Superfabric
- Weight: Not known
- Manual: Not yet available
- Manufacturer Link: Helium-Dive
[quads id=1]
Helix Sidemount
The Helix sidemount is manufactured in Singapore and is purely designed for recreational sidemount diving (wreck penetration and technical diving in the rig is not advised by the manufacturer). The rig weighs less than 1kg and features a novel harness design that removes the waist belt and crotch strap. The wing is located high on the back, with a top-mounted LPI. It has 10kg/22lb of buoyancy and the wing is constructed from 1400 denier nylon.
- Buoyancy: 22lb / 10kg
- Material: 1400 denier nylon single shell
- Weight: 1.5kg
- Manual: Not available
- Manufacturers Website: Helix Sidemount (alt: Diveguide.Com/Helix)
[quads id=1]
HOG Sidemount
- Buoyancy: 45lbs / 20kgs
- Material: 420 Hi-Tenacity Nylon Air Cell
- Weight: 6.2lbs
- Manual: Not yet available
- Manufacturers Link: HOG
[quads id=1]
Hollis SMS100
The Hollis SMS (Side Mount System) 100 is an integrated, hybrid sidemount system, which allows use of sidemount, back-mounted doubles and single tank configurations. It features an adjustable (rather than single-piece) harness, more akin to jacket BCD, or ‘comfort/deluxe’ harness design and is available with a single or double bladder. There are many ‘standardized’ after-market modifications available for the SMS100, the most notable of which is the Edd Sorenson/Cave Adventures cave mod. More Details / Review here
- Buoyancy: 52lbs / 24kg
- Material: 1000 denier CorduraTM w/ PU lamination outer shell & 15mil urethane internal bladder
- Weight: Not known
- Manual: SMS100 User Manual
- Manufacturer Link: Hollis Gear SMS100
[quads id=1]
Hollis SMS75
The SMS75 is Hollis’ mid-buoyancy sidemount system. It’s more streamlined and lightweight than the SMS100 – but has more substantial lift than the SMS50. It comes with a lighter weight bungee than the SMS100/50… which is much more suitable for a variety of bungee approaches.
The rig is suitable for technical and overhead sidemount with steel cylinders, but the lack of mounting points to keep aluminium cylinders in trim might frustrate divers in tropical areas where non-steel tanks are the norm. The trapezoid wing shape to promote horizontal trim and it has an adjustable and removable) wing bungee if individual wing shaping or retention is desired.
The system also includes cam-band slots; so it can be used as a backmount system also. The LPI and OPV are reversable and it is available in three sizes: SM/MD, LG/XL and XXL
- Buoyancy: 40lbs / 18kgs
- Material: 1000D Cordura
- Weight: 7lbs
- Manual: Not yet released
- Manufacturer Link: Hollis SMS75
[quads id=1]
Hollis SMS50
The Hollis SMS 50 is a dedicated sidemount rig, which features a lower capacity bladder than the SMS100 and a much more minimalist and ‘Hogarthian’ inspired harness system. It also has dedicated trim pockets on the upper and lower harness. Popular as an ‘off-the-shelf’ sidemount option for warm-water/recreational sidemount divers. Available in two models; the ‘Sport’ comes with a top-mounted low-pressure inflator. Both models have 10kg/22lbs of buoyancy. More Details / Review here and here
- Buoyancy: 23lbs / 10kg
- Material: 1000 Denier Cordura
- Weight: 5lbs
- Manual: SMS50 Users Manual
- Manufacturer Link: Hollis Gear SMS50
[quads id=1]
Hollis SMS Katana
The Hollis SMS Katana is more inspired by the British (Mexico cave) school of sidemount design; being Hollis’ most minimalist and modular rig to-date. It has a bare webbing ‘H’ style harness, integrated loop bungees and a diamond shaped bladder. There are 3 weight pockets; two 5lb/2.26 kg and one 3 lb/1.36kg.
The loop bungees are webbing mounted beneath the bladder, but route through the wing to help keep it snug to the diver’s body. Retail price is $499, making it a very economical option. It has two dump valves (OPV); at the rear left and the central top
- Buoyancy: 35lbs / 16kg
- Material: 1000 denier CorduraTM w/ PU lamination outer shell & 15mil urethane internal bladder
- Weight: Not listed
- Manual: Not Available
- Manufacturer Link: Hollis SMS Katana
[quads id=1]
Hollis SMS Katana 2
The Hollis SMS Katana 2 isn’t due for release until later in 2019, so not many firm specifications are known.
The design is very reminiscent of the XDeep Stealth Tech, with a flat plate on the upper-spine and horizontal wing below. From the initial DEMA show photos, it seems there is a one-piece soft backplate, loop bungee fittings and an ‘H’ style harness. It will be available with single or dual/redundant bladder options.
- Buoyancy: TBC
- Material: TBC
- Weight: Not Yet Known
- Manual: Not Yet Available
- Manufacturer Link: Not yet available
[quads id=1]
IST Dolphin Tech SMB-21
- IST Sidemount SMB-21
The IST SMB-21 is designed for warm-water/aluminium/wetsuit diving. It offers 21lb of buoyancy and is made from 1680 denier nylon with a TPU coating.
- Buoyancy: 21lb / 9.5kg
- Material: 1680 Denier Nylon with TPU coating
- Weight: 3kg (shipping weight boxed)
- Manual: Not yet available
- Manufacturer Link: IST SMB-21
[quads id=1]
IST Dolphin Tech SMB-42

The IST SMB-42 is designed for cold-water/steel cylinder/drysuit sidemount diving. It features a generous42lb bladder is constructed from the same 1680 denier nylon as the SMB-21.Review/video here: 60 Second ScubaLab: Dolphin Tech 42
- Buoyancy: 42lb / 19kg
- Material: 1680 Denier Nylon with TPU coating
- Weight: TBC
- Manual: Not yet available
- Manufacturer Link: IST SMB-42
[quads id=1]
Kamaleont Sidemount
This Italian manufactured sidemount is of minimalist design with a triangular wing. It is not known if the sidemount diving system is still currently available for sale.
- Buoyancy: No information available
- Material: No information available
- Weight: Not known
- Manual: Not available
- Manufacturers Link: Nauticamare
[quads id=1]
Manta Industries / Highseas Millwork Sidemount
The Manta Industries sidemount is a triangular wing bladder on a single piece, continuous harness. It has two pull-dumps, located inside the wing and low-profile butt plate.
- Buoyancy: 50lb/24kg
- Material: “Super fabric”
- Weight: Not known
- Manual: Not available
- Manufacturers Link: Manta Industries Sidemount
[quads id=1]
Mares XR Pure Light
The Mares XR Pure Light is a stand-alone wing that can be fitted onto any of Mares’ hard backplates, or you can build a Mexican -style harness from the components they sell as accessories.
- Buoyancy: 24lb/12kg
- Material: Outer- 1200D Ballistic Nylon | Inner – 600D Polyester
- Weight: Not known
- Manual: Not available
- Manufacturers Link: Mares XR Pure Light
[quads id=1]
Northern Diver 42
British equipment manufacturer, Northern Diver, seems to have lacked any credible sidemount user experience when designing this BCD. Nicknamed the ‘Teenage Mutant Ninja Turtle‘ by the sidemount community, this rig has a very bulbous oval wing. Having used prototype sidemount of very similar specifications, I can say that this design proves very ungainly in the water and doesn’t trim the diver well.
- Buoyancy: 40lb/18.3kg
- Material: 1680D nylon
- Weight: 4.2kg
- Manual: Not available
- Manufacturers Link: Northern Diver Sidemount 42
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OMS Sidestream
OMS released the Sidesteam BCD in 2018. It seems designed for recreational sidemount use. It has a detachable buttplate and there is room on the waistbelt for more D-rings (that aluminium tank divers will need to supply and add themselves).
The rig doesn’t come with any bungees, although OMS apparently recommends a Loop bungee system – but, I can’t see evidence of where they expect you to rig that either front or back.
- Buoyancy: 27lb |12.5 kg
- Material: Ballistic nylon outer
- Weight: Not known
- Manual: Not Yet Available
- Manufacturer Link: Not on OMS site (DGX shop link)
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OMS Tesseract Wing/Profile ‘Tec’ Adapter
The OMS ‘Profile’ sidemount diving system is a modular hybrid, allowing inter-changeability between back-mounted and sidemount configurations. The Profile’’Tec’ adapter fits over the rear of the OMS Tesseract wing/backplate, to prevent taco’ing and provide attachment points for the bungees and ancillary equipment. The ‘Tesseract’ wing is similar to other OMS double-tank wings, but was adapted for maximum compatibility with the ‘Profile’ adapter; for instance, the inflator is off-set at the top, to allow the adapter cover/protector to fit over the top of the wing, whilst there are also dedicated attachment points at the top and bottom to ensure maximum fit between the wing and the adapter. It has 60lbs of buoyancy. When used with other wing systems, considerable user adaptation and initiative are required to make the ‘Profile’ adapter fit. It will, however, fit any wing/backplate that has standard 11” hole spacing. It is available in double/redundant bladder. More details/review here
- Buoyancy: 60lb / 27kg
- Material: Outer – 1000 denier Nylon backed with 5-6 oz Thermoplastic Polyurethane (TPU) | Inner – 200 Denier Nylon Fabric backed with .12 mm of TPU
- Weight: Not known
- Manual: Profile Sidemount Manual
- Manufacturer Link: OMS Profile Sidemount System
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OMS REC Sidemount Adapter
OMS also produce the ‘Rec’ adapter, which allows conversion of any existing backplate/wing style BCD into a basic sidemount rig. The adapter prevents the wing from going into a ‘teco’ shape, whilst also giving 6 D-ring mounting points for bungees and accessories along the sides. It also has a butt plate with further accessory D-rings, rails and two bungees for securing DSMBs and/or lift-bags. The ‘Rec’ adapter does not feature the extra ‘fold-over’ protection of the ‘Tec’ version; but this actually makes it a lot easier to fit on most wings.
Read: Diving the OMS Rec Sidemount Adapter
- Buoyancy: adapter only
- Material: Cordura
- Weight: Not known
- Manual: Profile Sidemount Manual
- Manufacturer Link: OMS Profile Sidemount System
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Oxycheq Recon
The Oxycheq Recon is available in either single (Recon 1) or double/redundant (Recon 2) bladder options. There is also the ‘extreme’ variant which features an especially durable, armored, outer fabric. This fabric includes tiny, hard guard plates that are adhered to multi-layered base fabrics. It has 55lbs of buoyancy.
- Buoyancy: 55lb/25kg
- Material: Outer – 1000 Denier + 5 oz urethane \ Inner – 25 mil urethane (Extreme armored variant differs)
- Weight: Not known
- Manual: Not available
- Manufacturer Link: Oxycheq Recon Sidemount
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Poseidon Sidemount

Diving manufacturer Poseidon have joined the sidemount market with the release of their new BCD. The rig is based on the American/Cold-Water school of design (see The Two Schools Of Sidemount Diving Heritage). As is common with sidemount BCDs of this design, the use of a butt-plate and lack of forward/sliding D-rings make it primarily suitable for diving with steel cylinders. Aluminium cylinders, which are ubiquitous in most warm-water destinations, do not trim well from butt-plates and must be shifted to the front waist-belt once buoyancy shifts to positive. One innovation new with this BCD is the use of bungees integral to the 12 liter/27lb bladder – which should help reduce any ‘turtle shell’ billowing of the bladder when inflated full.
The rig ships with independent bungee system and an inflator system that can be routed over the shoulder or up across the chest. The later method tending to be most streamlined for hose routing. The BCD is supplied with unique ‘cylinder bags’ which replace the normal rigging method for sidemount tanks. This feature may cause disapproval from some sidemount divers, in particular, the lower connection method; which cannot be sized individually and contains metal-to-metal connections (a big ‘no-no’ principle for overhead environment divers). These cylinder bags would also not work effectively if the user opted for a different bungee method, for instance, loop bungees.
See more information/photos here: Poseidon Sidemount Introduction
- Buoyancy: 27lb/12kg
- Material: Not known
- Weight: Not known
- Manual: Not available
- Manufacturer Link: Poseidon Sidemount
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Razor 2
Designed by renowned Mexico cave pioneer, Steve Bogaerts, the Razor system offers a distinctly minimalist approach, which makes the enables the diver to make the best use of the advantages of sidemount diving. It is based on a ‘Hogarthian’ principled harness, with a small capacity bladder (evolved from the MSR Hydromedary) on the diver’s back. It has a single-piece bungee, which routes across the diver’s back to provide attachments on both sides. It has a bottom/side-mounted inflator and OPV. One of the few minimalist sidemount rigs on the market with in-built redundant buoyancy (oral inflation only).
The latest version of the Razor, the 2.5, has a novel weighting solution. There are slots in the reinforced underside of the wing. The diver can place moveable weight pockets into any of those slots to fine tune their trim
- Buoyancy: 45lbs / 20kg (+ oral inflation 45lb redundant integral wing)
- Material: 3-layer sandwich (1000 denier nylon – heavy gauge polyurethane – 1000 denier nylon)
- Weight: Complete System: 7.9 lbs (3.5 Kg) / Basic System: 5.8 lbs (2.6 Kg)
- User Manual: Razor Side Mount System 2 Manual
- Manufacturer Link: Go-Sidemount
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Scubapro X-Tek Sidemount
- Buoyancy: 12kg/25lb or 20kg/45lb
- Material: Believed to be – Outer: 1680DEN Ballistic Nylon / Inner: 420 D Nylon
- Weight: not specified.
- Manual: X-Tek Line Manual
- Manufacturer Link: Scubapro X-Tek Sidemount
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ScubaOne Mangusta / Mangusta18
- Buoyancy: 18kg / 40lb
- Material: Composite 1000 denier Cordura nylon with Kevlar and polyurethane
- Weight: Not known
- Manual: Mangusta (in Italian)
- Manufacturers Link: ScubaOne Mangusta
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ScubaOne M90 Sidemount
- Buoyancy: 12kg / 26lb
- Material: Cordura® 1000 deniers with polyurethane inner
- Weight: Not known
- Manual: None yet available
- Manufacturers Link: ScubaOne M90
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Sopras Tek/Rec 1225

- Buoyancy: 12kg / 25lb
- Material: Not known
- Weight: Not known
- Manual: None yet available
- Manufacturers Link: Sopras Tek / Rec
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Sopras Tek Nomad Kevlar
- Buoyancy: 15kg / 32lb
- Material: Not known
- Weight: Not known
- Manual: None yet available
- Manufacturers Link: Sopras Tek Nomad Kevlar
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Scuba Force Blade

- Buoyancy: Not known
- Material: Not known
- Weight: Not known
- Manual: None yet available
- Manufacturers Link: Scuba Force Blade
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Scuba Force Toddy-Style
- Buoyancy: 15kg / 32lb
- Material: BallisticCordura 1000 deniers with textile inner
- Weight: Not known
- Manual: None yet available
- Manufacturers Link: None yet available
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SEAC KS01 Sidemount

- Buoyancy: 38lbs / 17kg
- Material: Outer: Cordura 500 3D / Inner: Cordura 500 with “Ironman” exterior coating
- Weight: 3.3 lbs / 1.5kg
- Manual: Not available
- Manufacturers Link: www.seacsub.com
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Sea Monster Sidemount
- Buoyancy: varies depending on back-mount wing used
- Material: Not known
- Weight: Not known
- Manual: Not known
- Manufacturers Link: Sea Monster Sidemount
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SF Tech Sidemount

- Buoyancy: Details not available
- Material: Details not available
- Weight: Details not available
- Manual: Details not available
- Manufacturer Link: SF Tech
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SistemA Sidemount

- Buoyancy: Not known
- Material: Not known
- Weight: Not known
- Manual: Not known
- Manufacturers Link: www.tecdiving.nl (currently no sidemount detail on the site)
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Sub-Gravity Diamond Sidemount System
The Sub-Gravity Diamond Sidemount is Czech-designed and features a range of 3 bladder sizes (8, 10 and 13 litres) to suit a variety of needs. It is another minimalist/hogarthian inspired configuration, with three LPI loations (top/outer, inner left and right) allowing the user to choose where to place the LPI and OPV. It has been extensively tested in the caves of Mexico and Florida. More Details/Review here
- Buoyancy: S (18lb/ 7kg), M (22lb/10kg) and L (29lb/13kg)
- Material: Outer – Cordura 1000 | Inner – Cordura 360 with PU seam coating
- Weight: 6.5lbs
- Manual: Diamond Sidemount User Manual
- Manufacturers Link: (not avail) Sub-Gravity ‘Diamond Sidemount’
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Sublevel Sidemount
The Sublevel sidemount is designed purely as a recreational/open-water sidemount system, with a design emphasis on lightweight, low-bulk, travel. It has 3 integrated weight pockets on the inside of the wing, each of which can hold 2lb of weight. It has a pull-dump LPI and
- Buoyancy: 27lb / 12kg Sealed single compartmental system.
- Material: Outer 1000 denier nylon / Inner 420 dennier nylon with 0.15mm TPU
- Weight: 6lb/2.7kg
- Manual: Not yet available
- Manufacturer Link: SubLevel Sidemount
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Sump UK Sidemount
Andrew Goring at SUMP UK is increasingly well known in sidemount circles for producing awesome custom sidemount hardware. He now produces complete harnesses and has a primary and redundant wing. His sidemount system is incredible modular and you can design your system to perfectly meet your needs. Options include a ‘V’ or ‘H’ style harness, varied D-rings, buckles and attachment points… and the wing is available in black or limited-edition camo.
- Buoyancy: Not known
- Material: Not known
- Weight: Not known
- Manual: Not known
- Manufacturers Link: Sump UK Facebook
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Tecline Avenger 16
- Buoyancy: 36 lb / 16kg
- Material: Cordura 2000 or reinforced kevlar options
- Weight: Not known
- Manual: Tecline Avenger Manual
- Manufacturers Link: Tecline Sidemount
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Tecline Side 16
- Buoyancy: 36 lb / 16kg
- Material: Cordura 2000
- Weight: Not known
- Manual: Tecline Side 16 Manual
- Manufacturers Link: Tecline Sidemount
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Toddy-Style TS Sidemount

- TS1 Cordura (Cordura 600)
- TS2 Cave & Wreck (PVC “Snakeskin” coated polyester)
- TS3 Kevlar (SFTech Kevlar reinforced polyester)
- Buoyancy: 15kg / 32lb
- Material: Aluminium plates with three wing material options
- Weight: tbc
- Manual: Toddy Style Manual
- Manufacturers Link: https://toddy-style.com/
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UTD – Z-System
The Z-System shares many attributes with the Razor, whilst also incorporating elements that allow it to adhere to UTD principles and retain ‘DIR compatibility’. Most noticeable of these is the optional (Z-)manifold system that allows sidemount cylinders to be linked (along with LPI and drysuit inflator), replicating the benefits of isolated manifold back-mount systems and ensuring procedural compatibility in mixed back-mount/sidemount/CCR teams. It also has a number of optional trim weighting solutions, as well as different bladder options; Z-Trim (20lbs/9 kg), Z-Tec (37lbs/17 kg)and Z-Plus (50lbs / 21kg) that enhance suitability for technical doubles, recreational sidemount and redundant bladder demands.
- Buoyancy: Z-Trim: 20lbs / 9kgs | Z-Plus 50lbs/21kg
- Material: 1050 Denier Ballistic Cordura (“Pro” version has undisclosed Heavy Duty puncture & abrasion resistant material)
- Weight: Not known
- User Manual: Z-Trim User Manual
- Manufacturer Link: UTD Z-Trim Sidemount
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UTD Alpha/Delta Hybrid
The Alpha/Delta hybrid consists of a specially designed wing of 37lbs/17kg capacity that can be swiftly fitted to either a conventional back-mount harness or dedicated sidemount harness. The LPI/OPV is interchangeable, offering low or high positioning of the inflator hose.
- Buoyancy: 37lbs/17kg
- Material: 1050 Denier Ballistic Cordura (“Pro” version has undisclosed Heavy Duty puncture & abrasion resistant material)
- Weight: Not known
- User Manual: Delta Hybrid Manual
- Manufacturer Link: UTD Alpha Delta Trim
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White Arrow S-Wing
White Arrow produce a wing system that utilizes a conventional back-mount backplate. . The ‘S-Wing’ has 15kg /37.5 lb of buoyancy and features a unique ‘butt-plate’ system that fits directly to the metal backplate.
- Buoyancy: 37.5lb / 15kg
- Material: Outer – Cordura 2000 | Inner – Cordura 2000
- Weight: Not known
- Manual: Not available
- Manufacturer Link: White Arrow Sidemount
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X-Deep Stealth 2.0 ‘Classic’
The X-Deep Stealth very popular minimalist, hogarthian-style, MSR-derived, sidemount system, which features a wrap-around bladder and innovative weighting system. The bladder is separate from the under-lying harness and secures to the diver with torso bungees. Shifting the bladder location up and down on the torso provides a rapid adjustment of diver trim. It has 16kgs of buoyancy and comes with a unique in-water adjustable waist D-ring system using thick O-rings (that allows the diver to shift cylinder trim with aluminium cylinders at it varies during the dive).
A dual/redundant bladder version of the XDeep Stealth Classic was released in 2018.
- Buoyancy: 16.5 kg / 36 lbs single bladder
- Material: Double shell – Outer Cordura® 1100 dTEX / Inner Nylon 440dTEX TPU 0.215mm
- Weight: 0.9 kg
- Manual: Stealth Users Manual
- Manufacturer Link: X-Deep
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X-Deep Stealth REC Wing
The XDeep Stealth REC wing is designed for recreational sidemount divers and is integrated onto the existing Stealth harness system. It has quick-release clips at the shoulders, new design weight pockets and quick release pockets. It has 35lbs of lift. More Details / Review here
A dual/redundant bladder version of the XDeep Rec was released in 2018.
- Buoyancy: 16 kg / 35 lbs single bladder
- Material: Double shell – Outer Cordura® 1100 dTEX / Inner Nylon 440dTEX TPU 0.215mm
- Weight: 0.9 kg
- Manual: not yet available
- Manufacturer Link: X-Deep
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X-Deep Stealth TEC Wing
The XDeep Stealth TEC wing is designed for hard-core cave and trimix divers and is also integrated onto the existing Stealth harness system. The major difference to the ‘classic’ wing is that the TEC wing is attached to the top of the harness. Wing buoyancy is limited to the lower section of the wing, retaining the ‘ideal’ placement of gas for good sidemount trim.
The LPI hose can now be routed from either left of right side, providing options for wetsuit or drysuit divers. Buoyancy is a massive 50lbs of lift – perfect for the most demanding trimix sidemount deep dives.
A dual bladder redundant version of the XDeep Stealth tech was released in 2017.
- Buoyancy: 21 kg / 50lbs single bladder
- Material: Double shell – Outer Cordura® 1100 dTEX / Inner Nylon 440dTEX TPU 0.215mm
- Weight: 0.9 kg
- Manual: XDeep Stealth TEC
- Manufacturer Link: X-Deep
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There are also a number of stand-alone components on the market. Whilst not complete sidemount diving systems, they may warrant consideration if building a mixed, or DIY, configuration rig:
Stand-Alone Sidemount Harnesses
Darkside Harness
The Darkside harness is manufactured in the UK and consists of a hogarthian webbing rig with lumbar and shoulder plates. It has regular sized D-rings and crotch strap.
- Buoyancy: Not applicable – harness only
- Material: Nylon webbing / 316 marine grade stainless steel plates
- Weight: 1.4kg shipping weight
- Manual: Not available
- Manufacturers Link: darkside-diving.co.uk
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Farr Explorer 1 Harness
Designed by renown cave explorer Martyn Farr, the ‘Explorer 1’ is a seriously robust harness designed for exploratory cave diving. All metalwork is 316 stainless steel and the waist belt can be stripped down quickly to add/remove weights. Not currently listed on the Farrworld website.
- Buoyancy: Not applicable – harness only
- Material: Nylon webbing / 316 marine grade stainless steel plates
- Weight: Not known
- Manual: Not available
- Manufacturers Link: farrworld.co.uk
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Warmbac ASM Sidemount Harness
Another UK manufactured stand-alone harness is the Warmbac. It has a fully adjustable belt and shoulder straps. The bungees run from between the shoulders to the shoulder mounted large D rings. It features a highly adjustable roller-style belt buckle and single “floating” belt through the main ‘H’ harness with lead attachment points. Often worn in conjunction with a dedicated climbing seat harness by UK sump divers.
- Buoyancy: Not applicable – harness only
- Material: Nylon webbing / 316 marine grade stainless steel plates
- Weight: 1.23kg
- Manual: Not available
- Manufacturers Link: Warmbac Divers Sidemount Harness
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Kent Tooling Sidemount Harness

- Buoyancy: Not applicable – harness only
- Material: Nylon webbing / 316 marine grade stainless steel plates
- Weight: Not known
- Manual: Not available
- Manufacturers Link: Kent Tooling Sidemount Harness
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DiveRite Transpac XT Harness

- Buoyancy: Not applicable – harness only
- Material: Soft backplate constructed of 1000 denier ballistic nylon. Marine grade stainless plates and fittings.
- Weight: Small 4 lbs 4 oz / 1.92kg to Large – 5lbs / 2.29kg
- Manual: Transpac XT Harness Manual
- Manufacturers Link: DiveRite Transpac XT
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DiveRite Transpac XT Tech Harness

- Buoyancy: Not applicable – harness only
- Material: Soft backplate constructed of 1000 denier ballistic nylon. Marine grade stainless plates and fittings.
- Weight: < 5lbs / 2.29kg
- Manual: Transpac XT Tech Manual
- Manufacturers Link: DiveRite Transpac XT Tech
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Santiago Ultimate Harness

- Buoyancy: Not applicable – harness only
- Material: Nylon webbing and stainless steel fittings.
- Weight: Not Known
- Manual: Not Available
- Manufacturers Link: Santiago Diving Sidemount Ultimate
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Innodive Sidemount Harness

- Buoyancy: Not applicable – harness only
- Material: Nylon webbing and stainless steel fittings.
- Weight: Not Known
- Manual: Not Available
- Manufacturers Link: Innodive Sidemount Harness
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Deco Sidemount Harness
- Buoyancy: Not applicable – harness only
- Material: Nylon webbing and stainless steel fittings.
- Weight: Not Known
- Manual: Not Available
- Manufacturers Link: Deco Dive Equipment
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SUMP UK Sidemount Harnesses


- Buoyancy: Not applicable – harness only
- Material: Nylon webbing and stainless steel fittings.
- Weight: Not Known
- Manual: Not Available
- Manufacturers Link: SUMP UK Facebook
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Top 5 Warm-Water Sidemount Fins
Stand-Alone Sidemount Harness Options
How to Set Up Sidemount Loop Bungees
About the Author
Andy Davis is a RAID, PADI TecRec, ANDI, BSAC and SSI qualified independent technical diving instructor who specializes in teaching advanced sidemount, trimix and wreck exploration diving courses across South East Asia. Currently residing in ‘wreck diving heaven’ at Subic Bay, Philippines, he has amassed more than 9000 open circuit and CCR dives over 27 years of diving across the globe.
Andy has published many magazine articles on technical diving, has written course materials for dive training agency syllabus, tests and reviews diving gear for major manufacturers and consults with the Philippines Underwater Archaeology Society.
He is currently writing a series of books to be published on advanced diving topics. Prior to becoming a professional technical diving educator in 2006, Andy was a commissioned officer in the Royal Air Force and has served in Iraq, Afghanistan, Belize and Cyprus.