Clever Princeton Latin Boxer Machine wash warm, only non chlorine bleach when needed. Tumble dry low, cool iron if needed. Wash dark colors separately. 85% Nylon / 15% Spandex Machine wash warm, only non chlorine bleach when needed. Tumble dry low, cool iron if needed. Wash dark colors separately. Small Waist: 27-29", Medium Waist: 30-32", Large Waist: 33-35", Extra Large Waist: 36-38"