Made of 8.5 oz. flame-resistant canvas, a 88% cotton/12% high-tenacity nylon blend with loose seat and thigh, and sits slightly below the natural waist for a comfortable fit. Brass zipper fly has Nomex® zipper tape and high-tension waist snap closure is arc-resistant. Features cell phone pocket, utility pocket, left leg hammer loop, triple-stitched main seams, and 19" leg openings that fit over work boots. Arc rating: 12 cal/cm², CAT2. NFPA 70E and 2112 compliant.