The Sharkskin Chillproof Socks are thermal water-sports socks designed to keep your feet warm and comfortable during scuba diving, snorkeling, and other aquatic activities. They are made from Sharkskin’s Chillproof material, a specialized 3-layer fabric with thermal protection similar to a 2.5–3 mm neoprene wetsuit, but lighter and more flexible.

These socks can be worn inside dive boots, wetsuit boots, or alone, helping prevent heat loss in the feet—one of the areas where divers lose warmth quickly.