Carhartt flame-resistant relaxed fit denim jean is as comfortable as it is durable. Made of 14.5-ounce denim, an 88% cotton and 12% high-tenacity nylon blend, it’s pre-washed for softness and it has a relaxed seat and thigh to give you plenty of comfort. The brass zipper fly features protective Nomex® zipper tape and the high-tension snap closure at the waist is arc-resistant. 17-inch leg openings fit over work boots. NFPA 70E and NFPA 2112 compliant.