Tommie Copper Women's Rise Over the Calf Dress Socks, Midnight Navy, 10-12.5 61% Nylon, 30% Copper Nylon, 9% Spandex Made in US Comfortable compression that provides support for muscles and joints all day, every day. CopperZnergy fabric eliminates odor causing microbes on fabric. Knitted rib arch design provides added support. UPF 50+ protection from the sun's harmful UV rays. Graduated compression assists with muscle recovery from the calf through the foot. Comfortable compression that provides support for muscles and joints all day every day. CopperZnergy fabric eliminates odor causing microbes on fabric. Extra cushion on heel and toes keep you dry and provide comfort. ; Knitted rib arch design provides added support. ; Graduated compression assists with muscle recovery from the calf through the foot.