11 ounce, FR duck: 88% cotton/12% nylon. Loose original fit sits at the waist. Full seat and thigh. Garment washed for soft finish. Arc-resistant button closure at waist. Brass zipper fly with Nomex® FR zipper tape. Left-leg utility band. Triple-stitched main seams. Straight leg opening. Carhartt FR label sewn on back pocket; NFPA 2112/CAT 2 label sewn on front waistband. Meets the performance requirements of NFPA 70E and is UL® Classified to NFPA 2112. Imported.