This Bare boot comes with a heavy duty zipper and a durable non-slip sole. Boot is made from 5 mm nylon II neoprene rubber. All the boots seams are double-glued and blind stitched for strength and warmth. The heavy-duty zipper has a gusset for easy entry and the boots top edge is taped with elastic fabric for additional strength and durability. Great for cold and mid to cold water temperatures. Comes with sanitized anti-microbial agent for effective odor control keeping your boot fresh smelling dive after dive. Silk screened upper reinforcement's gives you added protection when your foot is in the fin pocket.