The new HYBRID sleeveless hooded vest s ultra-comfortable neoprene/nylon blend does a great job of protecting your torso and head, two critical areas for minimizing heat loss. It provides comfort, warmth and protection where you need it most. On the underside of the nylon panels a microplush interior makes the vest warm and cozy. This fleece fabric absorbs less water, which keeps heat against the body, increasing overall warmth. It also dries quickly. This exceptional hooded vest can be worn by itself or layered over a long sleeve thermal top to increase warmth and protection. Add a pair of cargo shorts for total thermal protection on a warm water dive.