11-ounce, 69% cotton / 29% modacrylic / 1% elastane / 1% aramid FR denim · Meets the performance requirements of NFPA 70E/ASTM F1506 · UL® classified to NFPA 2112 · Built to move with Rugged Flex stretch technology · Built with Force technology to wick sweat and dry fast · FastDry® technology keeps you cool for all day comfort ·Sits slightly below the waist ·More room to move with a comfortable fit through the seat and thigh and a straight leg opening · Strong sewn-on-seam belt loops · Strong sewn-on-seam belt loops · Carhartt FR label sewn on back pocket; NFPA 2112 / CAT 2 label sewn on waistband · Reinforced front slash pockets · Two back pockets · Multiple tool and utility pockets · Imported