3MM SOFT NEOPRENE MATERIAL - Lightweight, Durable Diving Socks Offer Warmth u0026amp; Protection Without Compromising Comfort.nANTI-SLIP FUNCTION - Anti-slip Bottom Design for security diving,swimming,yoga,walking on the beach.nBEST PROTECTION - Shield Your Feet From the Sun, Hot Sand, Asphalt, Sharp Rocks and Corals or Use as Fin Socks When Diving - for Both Warm u0026amp; Cold Weather.nIDEAL FOR YOU - Perfect for protecting your feet from cut,puncture,scratch,and cold water while snorkeling,diving,kayaking,boating,walking along the beach and other water sports.nSIZE REFERENCE - Available Sizes(Feet Length):S-19.5cm/7.67in, M-21.5cm/8.46in, L-22.5cm/8.85in, XL-24.5cm/9.64in, XXL-26cm/10.23in, 3XL-28.5cm/11.22in.More size details can be found in the picture.n