XS Scuba's 8mm Thug Boots are one extremely warm, well built, and durable, cold water dive boot. Built-to-last theses nylon-2 neoprene rubber boots have glued and double-blind stitched seams inside and out for strength and durability. The boots are equipped with a large #10-YKK zipper chain with YKK's best marine bronze zipper slider. The zipper is also equipped with a cold-water dam, hook and loop tab zipper retainer and nylon zipper stops. The boots exterior surface is laminated with high abrasion resistant Ryno-Hide. The insole is also made from 8mm neoprene for added cushion, comfort and warmth. The Thug Boots have a heavy-duty molded rubber sole, protective heel and toe caps and nylon edge binding all for additional strength and durability. Boots are black in color. So, if you're looking for a durable pair of diving boots, look no further, the Thug 8mm Boots are what you want!