Product details:

Fits like your favorite pair of jeans, with stretch for added comfort and the security of flame-resistant protection. 12.5-ounce, 99% cotton/1% spandex FR Denim. Built with Rugged Flex to bend and stretch with you as you move. Straight Traditional fit sits slightly below the waist. Slim seat and thigh. Garment washed for a soft finish. Arc-resistant button closure at waist. Brass zipper fly with Nomex FR zipper tape. Two back pockets. Triple-stitched main seams for durability. Straight leg opening fits over boots. Carhartt FR label sewn on back pocket; NFPA 2112/CAT 2 label sewn on coin pocket. Meets the performance requirements of NFPA 70E and is UL Classified to NFPA 2112.