Designed with an ultra-flexible waistband that comfortably adjusts to your size, the 4D Flex Max Flex Boxer Briefs w/ Rib Side Panel are made from a soft cotton blend with cooling and moisture-wicking properties. Four-way stretch and ribbed side panels allow for maximum flexibility and freedom of movement. Gusset for added support. Pouch with functional fly. Tag free. #387,366 in Clothing, Shoes & Jewelry ( ) #1,336 in