WFRB159 - W FR Canvas Pant Carhartt's flame-resistant relaxed fit midweight canvas pant is perfect every day workwear when you need protection from electric arcs or flashfires. Made of 8.5-ounce flame-resistant canvas, a blend of 88% cotton and 12% high-tenacity nylon, it has a relaxed seat and thigh and a contoured waistband to eliminate gapping in the back. It also features a cell phone pocket, utility pocket, left leg hammer loop, arc-resistant high-tension snap closure at waist, a brass zipper fly with Nomexzipper tape and two reinforced back pockets. Main seams are triple-stitched for durability. Straight leg openings fit over work boots. Meets the performance requirements of NFPA 70E and is UL Classified to NFPA 2112 Carhartt FR Canvas Pant