Lined for comfort in 7.0-ounce FR twill, Carhartt's flame-resistant lined utility denim jean delivers warmth on windy or wintery work days. Made of 88% cotton/12% high-tenacity nylon and garment washed for a soft finish, this straight-leg jean is constructed of rugged FR 14.5-ounce, 100% cotton denim. Sits slightly below the waist, offers a relaxed-fitting seat and thighs, and features leg openings that fit over work boots. Two reinforced back pockets and triple-stitched main seams for extra strength. VPN: 100160.