Clever Clever Jockstrap Machine wash in soft cycle. Do not use chlorine bleach. Do not iron. Do not dry in the sun. 94% Cotton / 6% Spandex Machine wash in soft cycle. Do not use chlorine bleach. Do not iron. Do not dry in the sun. Small Waist: 27-29", Medium Waist: 30-32", Large Waist: 33-35", Extra Large Waist: 36-38"