Tommie Copper Men's Performance Escalate Active Fit Short Sleeve Crew Neck Shirt 86% Copper Polyester, 14% Spandex Imported Reflective elements for safety Cool Copper moisture wicking, drying and cooling Natural anti-odor technology inhibits the growth of odor causing microbes on the fabric UPF 50+ protection from the sun's harmful UV rays. Signature ergonomic stitching