The Nike Elite Crew Basketball Socks feature an arch band for a supportive fit. Zonal cushioning helps to absorb impact during play. The socks are constructed with extra cushioning at key pressure points to provide comfort where needed. The socks have a dynamic arch band that contours around the foot for a locked-in fit. Ribbed traction at the forefoot helps reduce slipping inside the shoe. The socks are made with 61% polyester, 20% nylon, 17% cotton, and 2% polyurethane. Dri-FIT Technology keeps you dry and comfortable. The socks are machine washable. These are crew socks.