3mm waterproof swim socks that keep feet warm in cold water and protect against abrasion and cuts, making it safer to explore in environments such as caves, wrecks and coral reefs. Key benefits - Warmth in cold water: 3mm neoprene provides insulation to help keep feet comfortable during prolonged aquatic activities. - Foot protection: creates a barrier against sharp rocks, debris and rough surfaces to reduce the risk of cuts and scrapes. - Secure, non-slip fit: adjustable Velcro fastener at the ankle lets you tailor the fit so the sock stays in place. - Enhanced traction: undersole features a rubber silicone grip pattern for better traction on wet surfaces. - Comfortable and easy to wear: flexible neoprene offers a comfortable fit and easy on/off. Product features - Material and thickness: neoprene, 3 mm - Closure: adjustable Velcro strap at the ankle - Outsole: rubber silicone pattern for grip when wet - Waterproof design for use in freshwater and saltwater environments Use scenarios - Cave or wreck exploration in cold water: warmth, protection, and reliable grip during intimate footing and entry/exit. - Open water swimming, snorkeling or diving: keeps feet warm and protected while maintaining footing and balance. - Water sport activities and beach trips: wakeboarding, kayaking, surfing, canoeing, or casual beach holidays where foot protection and traction are beneficial.