This pair of 6mm Akona Zipper Diving Boots are great for your next scuba diving adventure. Features of these fantastic booties include: AKONA QUALITY Constructed of 6MM nylon II neoprene for warmth Glued and blind stitched seams for a superior water seal New design provides a contoured and snug fit This creates a more comfortable and warmer boot Newly designed heavier molded sole Protective toe and heel cap All edges finished with black nylon binding #5 YKK Delrin zipper with dam Great boot for warm and cold water diving Model #AKBT168 These 6MM Noeprene Boots are a fantastic deal for diving, walking through tidal pools, and other water sports!