Field-tested Carhartt® relaxed fit jean is both comfortable and durable. Constructed of heavyweight 14-oz. flame-resistant denim with a 88% cotton/12% high-tenacity nylon blend to protect wearer from burns caused by electric arc or flash fires. Prewashed for softness and has a relaxed seat and thigh for comfort. Brass zipper fly features protective Nomex® zipper tape and high-tension snap closure at waist is arc-resistant. NFPA 70E compliant. Two reinforced back pockets. 17" leg openings fit over work boots. Big style available in 52 and 54 waist (30 and 32 inseams only).