This is the IST 3mm Neoprene High-cut Scuba Diving Boots Dive Booties Features: 3 mm high-top (8 in) neoprene boots with vulcanized rubber sole All seams are flatlock-stitched for added durability and resistance to flushing Toe and heel caps for added support and protection Built-in fin strap cleat helps keep fin straps securely in place Ultra-durable #10 YKK zipper with inner gusset to prevent seepage A slightly difference from the traditional diving market, IST announce several new colors to neoprene products to make it more sports-like and excellent for any other outdoor or watersports activities.