These Fox River Socks take all the duty you can dish out. Extra cushioning softens the blows your feet take every day. Quick-dry fibers make washing a simple task. Superb fit minimizes bunching and blistering. Our exclusive Wick Dry™ technology keeps feet dry while our URfit® System provides support. URfit® System provides arch support and memory-knit construction Fully cushioned sole and leg absorb shocks and insulate Multifilament yarn construction makes it very abrasion resistant and adds durability Smooth, flat comfort toe seam 70% polypropylene, 28% nylon, 2% spandex