Diesel Platinum Microfiber Jocky Jock Strap Machine wash cool. Do not bleach. Tumble dry low heat or lay flat to dry. Do not dry clean. Do not iron. 91% Nylon / 9% Spandex Machine wash cool. Do not bleach. Tumble dry low heat or lay flat to dry. Do not dry clean. Do not iron. Small Waist: 29 - 31", Medium Waist: 31 - 33", Large Waist: 34 - 36", Extra Large Waist: 36 - 38"