Experience unparalleled thermal protection and freedom of movement with the Swim Research Freedom 4mm Swim Socks. Perfect for open water swimming, these socks are crafted from 100% Thermotech Xtend Neoprene, offering exceptional flexibility, lightweight comfort, and a super hydrophobic external lining. The Dura Flex sole ensures improved abrasion resistance and protection, while the Future Fit 3D construction technology provides a snug fit that hugs the contours of your foot for increased warmth and sensitivity. With glued and blindstitched seams, these socks deliver superior warmth and maximum comfort, making them an essential accessory for any serious swimmer.