Description   - Perfect for cold weather and water sports - Creates friction barrier - Insulates in cold weather - More comfortable than traditional socks  - Works wet or dry - Sold in pairs Just like the Ultrathin Ankle Bootie but taller and with full foot coverage. Available in our exclusive Ultrathin custom Lycra® with memory core in black with red interior. The Ultrathin fabric is similar to neoprene but super thin and supple, never loses its shape and dries quickly. Flat-lock stitching keeps seams smooth and comfortable.  Great for water sports, winter sports and chilly/wet weather.  Small fits Women's 6-8 Men's 5-7 Medium fits Women's 9-10 Men's 8-9  Large fits Women's 11-12 Men's 10-11 X-Large fits Men's 12-14 Note: Their unique insulating properties may be too warm for some sports.