This is the Akona 6mm Fit Molded Sole Hard Scuba Diving Boot High Cut Features: Sneaker-Like™ Molded Sole Arch Support Comfortable & Durable Nylon Webbing Runs Vertically Up Back of Boot: Provide More Durability & Strength Increased Durability when Pulling Boots-On #5 YKK Zipper: Durable & Salt Water Safe Vulcanized Heel & Toe Caps Provide Strength & Durability In-High-Wear-Areas 6mm Nylon-2 Neoprene Rubber Glued & Sewn Seams The Akona Fit high-top boots have a sneaker-like™ molded sole. With arch support the Akona Fit boots are both comfortable and durable. Nylon webbing runs vertically up the back of the boot to provide more durability and strength when pulling the boots on. The #5 YKK zipper is durable and salt water safe. Vulcanized heel and toe caps provide strength and durability in high wear areas. Boot is made from 6mm nylon-2 neoprene rubber with glued and sewn seams. Boot is black in color and available in multiple sizes.