The Speedo Openwater Swim Sock 3mm is a versatile pair of neoprene socks designed to enhance your outdoor swimming experience. Crafted from 3mm Yamamoto neoprene, these socks provide superior warmth and comfort, making them ideal for extended swims in cooler waters. The durable sole offers excellent grip and protection, ensuring safe and secure footing on slippery surfaces. With an adjustable Velcro-fastening ankle loop and external seams, these socks deliver a snug fit and prevent chafing, whether worn with or without a wetsuit. Velcro-fastening ankle loop ensures a secure and adjustable fit Optimized length allows for use with or without a wetsuit Durable sole provides grip and protection on slippery surfaces External seams enhance comfort and reduce friction Made from limestone-based Yamamoto neoprene for warmth and flexibility Materials Made from 3mm Yamamoto neoprene