Tommie Copper Men's Recovery Meridian Boxer Briefs, Black, X-Large 88% COPPER POLYESTER/12% SPANDEX Imported Lightweight, invisible profile Rejuvenating relief from everyday aches Helps relieve muscle and joint stiffness and soreness Helps relieve stiffness and soreness CopperZnergy blend eliminates the growth of odor causing microbes on the fabric Cool Copper moisture wicking, drying and cooling Natural anti-odor technology inhibits the growth of odor causing microbes on the fabric Flat lock anti-chafe seaming