Wetsuit

A wetsuit is a garment, usually made of foamed or compressed neoprene, which is worn by surfers, divers, windsurfers, canoeists, and others engaged in water sports, providing thermal insulation, abrasion resistance and buoyancy. The insulation properties depend on bubbles of gas enclosed within the material, which reduce its ability to conduct heat. The bubbles also give the wetsuit a low density, providing buoyancy in water. Contrary to popular beliefs, the layer of warm water normally trapped between the wetsuit and the skin provides very little thermal insulation.