This is the Poseidon One Shoe Boot Neoprene Dive Bootie Step In Back ZipFeatures: One Shoe is made of sturdy neoprene Waterproof zipper from YKK Protective, desirable and functional in equal measures One Shoe fits snugly around the diver's foot and is extremely durable Made from Supratex with rubber sole YKK waterproof zipper and elastic bungee cord Colors: Black/White, Black/Black, Red/Black The One Shoe boot is made of sturdy neoprene with waterproof zipper from YKK. Protective, desirable and functional in equal measures, the One Shoe fits snugly around the diver's foot and is extremely durable. "