Cressi Tall Premium Neoprene 3mm Dive Scuba Fin Socks for Snorkeling and Diving - with Anti Slip Grip Short 3 mm Boots Super Elastic and Ultra Durable Nylon ll Neoprene Rubber Grip Sole Design: Non-Slip on Wet Surfaces such as Boat Decks and Slipper Ladders Built-to-Last with Glued-and-Sewn Seams for Strength and Durability Extremely Comfortable with a Grip Sole Design