Tommie Copper Men's Performance Dashing Full Arm Sleeve 86% COPPER POLYESTER/14% SPANDEX Imported Comfortable compression that provides support for muscles and joints all day, every day. Compression helps relieve everyday aches. Silicone palm and fingers design provide secure grip. Sold in pairs. Graduated 4D Compression Reduces muscle fatigue, damage, and injury Increased muscle and joint range of motion Improves circulation and oxygen delivery