Seavenger Zephyr 3mm Neoprene Socks for Scuba Diving, Snorkeling, Swimming & All Water Sports CONSERVES BODY HEAT  3mm neoprene provides insulation for cooler waters. SUPER STRETCHY  4-way stretch material forms to your foot for a comfortable fit. RELIABLE DURABILITY  Glued and blindstitched seams minimize water flow and maintain strength. MULTI-USE SOCKS  Ideal accessory for snorkeling, diving, water aerobics and other water sports. NON-SLIP GRIP  Dotted silkscreen sole keeps you from slipping or falling.