"Created in extremely supple, 1.5 mm thick, double-lined Ultraspan Neoprene, these socks have non-slip and anti-wear soles and an Aquastop sealing single-lined Neoprene at the top. They are perfect for all indoor and outdoor water sports thanks to the high protection and thermal function that they offer. They are ideal for long dives such as snorkeling, scuba diving or free diving, perfect with full foot pocket fins. Thanks to the non-slip soles are recommended for sailing, surfing, windsurfing and other water activities. Rinse with clear water after use and let dry. They dry quickly. The Ultra Stretch Socks are designed by Cressi and made in China. Cressi has been a brand pioneer in Scuba Diving, Snorkeling, and Freediving equipment since 1946. The product is covered by a 2-year limited warranty."