These Heavy Duty booties are perfect for scuba diving, snorkeling, beach dives, walking through tidal pools, and much more! 6mm of neoprene thickness for warmth Molded Sneaker Soles for longevity and rocky beach dives Thick strong heel cap Fin stop on heel for stability Ankle zippers and hook and loop strap for easy removal and dressing High quality seams for durability Expect the best with SeaSoft One of the warmest boots made No more cramps These boots have a hard sole and rigid rails that supply support for your feet letting the large muscle groups do the work instead of the small muscles Size: Mens 4/5 3XS Mens 7 XS Mens 8 SM Mens 9 MD Mens 10 LG Mens 11 XL Mens 12 2XL Mens 13/14 3XL Mens 15/16 4XL