The Ultra Run Crew sock is built for runners who demand comfort and performance. Extra terry cushioning in the toes and footbed absorbs impact, protecting your feet on pavement-pounding runs or tough trails. The ribbed knit ensures an ergonomic fit that keeps debris out, while the innovative toe sock design prevents blisters, wicks moisture, and maximizes foot utilization. Run farther, faster, and stronger with ultimate cushioning and support in every stride. Features and Benefits Blister Prevention With each toe protected, skin-on-skin friction is completely eliminated protecting your foot from blisters and hot spots. Moisture Management Each toe is wrapped in sweat-wicking material so your foot will be drier and therefore more comfortable than in traditional socks. Total Foot Utilization When your toes are separated and properly aligned, this allows your entire foot to be engaged in any athletic activity. Protective Cushion Extra cushioning on the footbed to increase foot comfort. Padded Toes Extra cushion throughout the toes with midweight terry throughout the toes. Mesh Top It provides maximum breathability and ventilation on the top of foot. Fiber Content Fiber content: 29% CoolMax 68% Nylon 3% Lycra Wash & Care Are your Injinji's dirty after a grueling run through the mud? It's time to wash them! To extend the life of your socks, Injinji recommends washing all of their socks on delicate with cold water, followed by line drying.