The main body is made of a thick 0.2 inch (5 mm) thick chloroprene material with high heat retention, and the inside of the boot is made of 0.2 inch (5 mm) thick chloroprene to keep the heat heat at the toes warm. Special reinforcement of the toe area reduces the burden on the toes caused by water pressure, Felt pin specification for non-slip and abrasion resistance. Product Number: 7624.