The Orvis Neoprene Wading Sock, at just 0.5mm thick, provides exceptional comfort for no-wader fly-fishing adventures. With a 4-way stretch design, this boot-high sock fits snugly like a cloth sock, offering warmth without bulk. The anatomically correct right and left designs ensure a close, comfortable fit, making it perfect for all-day wear. Ideal for pairing with the Approach wet wading shoe, this sock is the ultimate next-to-skin solution for your wading needs.