These men's Carhartt FR jeans offer protection and comfort on the job. Made of flame-resistant denim with enough flex for easy movement. Cut for a relaxed fit that's comfortable through the seat and thigh, with a tapered leg opening that fits over boots. ?12.5-ounce, 98% cotton / 2% spandex FR denim ?Meets the performance requirements of NFPA 70E and ASTM F1506 ?UL® classified to NFPA 2112 ?Built to move with Rugged Flex stretch technology ?Relaxed fit: Comfortable fit through the seat and thigh with more room to move and a tapered leg opening ?Brass zipper fly with Nomex® FR zipper tape ?Arc-resistant button closure at waist ?Strong sewn-on-seam belt loops ?NFPA 2112 / CAT 2 label sewn on waistband ?Carhartt FR label sewn on back pocket ?Two reinforced back pockets ?Imported