<\/span><\/h3>\n\n\n\nUnfortunately, most modern climbing and kayaking helmets are designed to be lightweight and built around a solid EVA or polystyrene foam lining. The foam is far too buoyant when you are diving. I’d guess within the region of 1-2lbs+ positive buoyancy; which is distracting at best, and dangerous at worst. Removing these glued-in linings is impractical. <\/p>\n\n\n\n
<\/span>Adjustable suspension<\/span><\/h3>\n\n\n\nBecause foam-lined helmets are impractical, you need to source a helmet that uses adjustable nylon strap suspension for support. If these helmets do also come with foam lining, it is typically either removable soft foam fabric or velcro-detachable EVA\/polystyrene blocks.<\/p>\n\n\n\n
<\/span>Minimal impact protection<\/span><\/h3>\n\n\n\nDiving helmets don’t need the impact protection that comes with products designed for climbing. The main hazard in wreck and cave diving is usually limited to low-velocity collisions. That risk doesn’t necessitate an impact-protection-rated helmet. <\/p>\n\n\n\n