These 5MM Neoprene Boots are a fantastic deal for diving, snorkeling, beach dives, walking through tidal pools, and other water sports! Constructed of 5MM Neoprene for warmth and comfort YKK Zipper on side of boot with zipper guard Toe and heel caps for added durability Hard, sure traction sole Fin stopper on heel Soft interior lining for comfort Glued and Blindstitch Construction inside and out for a watertight seal Good for Snorkeling, Scuba Diving, and Water Sports Sizes: 2XS (Men 4|Women 5.5) XS (Men 5|Women 6.5) SM (Men 6|Women 7.5) S/M (Men 7|Women 8.5) MD (Men 8|Women 9.5) M/L (Men 9|Women 10.5) LG (Men 10|Women 11.5) XL (Men 11|Women 12.5) 2XL (Men 12|Women 13.5) 3XL (Men 13|Women 14.5)