Tommie Copper Women's Athletic Lightweight Compression Over The Calf Socks 100% Other Fibers Made in US Comfortable compression that provides support for muscles and joints all day, every day. Compression helps relieve everyday aches. CopperZnergy fabric eliminates odor causing microbes on fabric. UPF 50+ protection from the sun's harmful UV rays. Graduated compression assists with muscle recovery from the calf through the foot. Knitted rib arch design provides added support, Fabric: 92% Nylon 8% Spandex