Umbro Men's Performance Stretch Check Boxer Brief 92% Polyester, 8% Spandex Imported Machine Wash 92 percent polyester 8 percent spandex Made of soft, lightweight, breathable, absorbant comfort fit fabric Body defining fit, compression performance sport brief 5 inch Great for working out, traveling and every day use. Lightning dry moisture control technology ensures continuous drying, keeping you fresh and sweat free all day 4 way easy-stretch design that conforms to your body prevents skin chafing, irritation and won't ride up