Experience the benefits of a copper infused sock when you wear the Copper Fit Sport Ankle Length Socks for your next workout. Made with high density activated copper woven into the fabric, these socks are extremely durable and made to withstand daily wear and use. With arch compression, a heel tab and moisture wicking material, you'll enjoy a secure breathable fit you can wear day after day. Make sure to order the right size - Small/Medium fits Men's shoe size 5-9 and Women's shoe size 6-10; Large/X-Large fits Men's shoe size 9-12 and Women's shoe size 10-13