Elastic comfort waistband; fly front. Breathable, butter-soft performance jersey fabric. Breathable mesh gusset lets you vent. Go-Dry Cool wicking technology helps keep you cool, dry & comfortable. Engineered with Built-In Flex stretch technology. Equal parts comfort & movement. Sits at waist. Fitted through hip and thigh. Mens performance boxer-brief underwear hits mid-thigh. 5 inseam. Size XXS = 26-27 waist. Size XS = 28-30 waist. Size S = 30-31 waist. Size M = 32-34 waist. Size L = 36-38 waist. Size XL = 40-42 waist. Size XXL = 44-46 waist. Size XXXL = 48-50 waist. Machine wash cold, tumble dry low.