Adidas Men's Stretch Cotton Boxer Brief Underwear (3-Pack) � Onix Grey/Black/Grey, 5152377. The ultimate in everyday comfort with a performance edge, Adidas Stretch Cotton 3-Pack underwear features our proven soft, moisture-wicking stretch cotton fabric, an easy fit through the pouch, functional no-gap fly, soft stitching, tagless waistband and no-ride-up construction. Made from 57% cotton, 38% polyester and 5% spandex