These flame-resistant relaxed fit denim jeans from Carhartt are as comfortable as they are durable. Made of 14.5-ounce denim, an 88% cotton and 12% high-tenacity nylon blend, they're pre-washed for softness and they have a relaxed seat and thigh to give you plenty of comfort. Brass zipper fly features protective Nomex zipper tape and the high-tension snap closure at the waist is arc-resistant. The 17-inch leg openings easily fit over work boots. Style #: FRB160.