Nike Men's Grip Strike Cushioned Crew Socks Engineered yarns are designed to maintain their grip within your boots, in wet or dry conditions. A heel lock system contours with the shape of your foot to provide a locked-down fit with fewer distractions. Cushioning where you need it most helps relieve pressure during the rapid-fire play. Dynamic arch compression for a supportive fit. Left/right specific for an anatomical fit. Fabric with Dri-FIT technology helps keep you dry, comfortable. Fabric: Dri-FIT 45% nylon/41% polyester/7% cotton/7% spandex.