Tommie Copper Women's Core Compression Tights 86% Copper Polyester, 14% Spandex Imported Comfortable compression that provides support for muscles and joints Copper and zinc infused compression sleeve CopperZnergy fabric eliminates odor causing microbes on fabric, Moisture-wicking fabric keeps you dry UPF 50+ protection from the sun's harmful UV rays Comfortable compression that provides support for muscles and joints all day every day. The ORIGINAL copper and zinc infused compression sleeve ; CopperZnergy fabric eliminates odor causing microbes on fabric. ; UPF 50+ protection from the sun's harmful UV rays.