Stock up on the essentials. These 3-Pack High Socks from On Running are built for performance. Soft and durable, they have arch support and a ventilated top. With a ribbed cuff, they're finished with signature branding. Machine washable. Material: 63% Cotton/33% Recycled Polyamide/4% Elastane. These socks bring next-level comfort for all-day wear. Comes in a set of three pairs. Medium ventilation. Arch support you can feel. Rib structure on the cuff. Double logo detailing. Care Instructions: Cold machine wash. Do not bleach. Do not dry clean. Do not iron. Do not tumble dry.