The Carhartt Men's Force Grid 5" Boxer Brief combines the mobility of Rugged Flex with the comfort of a cotton/poly blend. These briefs provide hardworking performance and support on the job. Features60% Cotton, 40% polyester jerseyRugged Flex technology for ease of movementSmooth flatlock seams for comfortConcealed Y-stitch waistband offers less chafing and smoother edgesContoured front for comfortTagless label135 GSM