JOR Explotion Jock Strap Machine wash cold, gentle cycle. Hang to dry. Do not bleach, do not dry clean. 68% Nylon / 26% Polyester / 6% Spandex Machine wash cold, gentle cycle. Hang to dry. Do not bleach, do not dry clean. Small Waist: 26"-28"", Medium Waist: 28"-30"", Large Waist: 30"-32"", Extra Large Waist: 32"-34""