FRB13 - M FR Signature Denim Dungaree For flame-resistant protection in a high-quality jean that’s built to last, Carhartt's flame-resistant denim dungaree is a great workwear choice. It’s made of 11.75-ounce, midweight, flame-resistant denim, 100% cotton, sits slightly above the waist and has a full seat and thigh. • Garment washed for a soft finish • Arc-resistant button closure at waist • Brass zipper fly with Nomex® FR zipper tape • Multiple utility pockets • Left-leg utility band • Triple-stitched main seams for durability • 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