Size and fit Size reference: please check the size guide before . The wetsuit socks are elastic and can extend to a certain length. If you have thicker ankles, one size larger is recommended. Material and comfort Material: 3 mm neoprene and nylon composite for good heat retention and stretch. Comfort: soft, thick fabric is skinfriendly and designed for repeated use. Closure and water handling Strap closure: elastic strap at the cuff helps prevent water from entering the socks and reduces the risk of the socks slipping off. Waterproof note: as diving equipment, they are not fully waterproof; some water may seep in through the stitched seams. Traction and protection Antislip: bottom has antislip particles to help you walk steadily on smooth surfaces. Protection: thick fabric helps keep feet warm and reduces the risk of being stabbed or scratched. Applications Scuba diving and snorkeling in cool waters. Kayaking, canoeing, and other water sports where warmth, snug fit, and grip are beneficial. Coastal activities, shore walking, or pool training that require traction and foot protection.