Cressi's Palma Long 3mm socks are manufactured from a superelastic and ultra durable nylon 3mm neoprene rubber. These socks are great for either full foot or open heel fins. The socks are lightweight and a great addition to the traveling diver's gear bag. Socks are extremely comfortable with a grip sole design to assist with non-slip on wet surfaces such as boat decks and slipper ladders. The Palma is built to last with glued and sewn seams for strength and durability. Socks are black in color and are covered by a 12-month limited warranty.