Short Premium Neoprene Diving Socks 3mm | PALMA ST by Cressi: quality since 1946 Cressi is a REAL diving, snorkeling and swimming Italian brand, since 1946. Short socks made with 3mm thick Super Elastic and Ultra Durable Neoprene & Nylon. Grip Sole Design made with Durable Rubber: Non-Slip on Wet Surfaces such as Boat Decks and Slipper Ladders. Great for Full Foot or Open Heel Fins. Built-to-Last with Glued-and-Sewn Seams for Strength and Durability.