Flame-Resistant Rugged Flex® Jean Straight Fit 12.5 ounce, 99% cotton / 1% spandex FR denim Meets the performance requirements of NFPA 70E UL® classified to NFPA 2112 Built to move with Rugged Flex® stretch technology Enough room to move with a closer-to-the-body fit through the seat and thigh and a straight leg opening Triple-stitched main seams Brass zip fly with Nomex® FR zipper tap Arc-resistant button closure at waist Garment-washed for a soft finish and reduced shrinkage Carhartt FR label sewn on back pocket; NFPA 2112 / CAT 2 label sewn on coin pocket Two reinforced back pockets Imported