Work in potentially hazardous conditions with confidence wearing Carhartt Flame-Resistant Signature Denim Dungaree Pants for Men. These flame-resistant pants are built to last through several seasons of hard work and meet the performance requirements of NFPA 70E. They are UL classified to NFPA 2112 and feature a Carhartt FR label sewn on back pocket and a NFPA 2112/CAT 2 label sewn on the front waistband. The brass zip fly boasts Nomex flame-resistant zipper tape and an arc-resistant button closure at waist. These Carhartt jeans have multiple utility pockets. The loose original fit has a cut that's full through the seat and thighs with straight leg openings that fit over most boots. 11.75-oz. 100% cotton flame-resistant denim is garment-washed for a soft finish and reduced shrinkage. Machine wash. Imported.Manufacturer style #: FRB13. 11.75-oz. 100% cotton flame-resistant denim Meets the performance requirements of NFPA 70E UL classified to NFPA 2112 Carhartt FR label sewn on back pocket; NFPA 2112/CAT 2 label sewn on front waistband Carhartt-strong triple-stitched main seams Brass zipper fly with Nomex flame-resistant zipper tape Arc-resistant button closure at waist Multiple utility pockets Garment-washed for a soft finish and reduced shrinkage Straight leg openings Loose original fit: comfortable fit through the seat and thighs