100791 - M FR Washed Duck Work Dungaree This flame-resistant duck work dungaree is made to last. 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 for durability • Straight leg opening fits over work boots • 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