11-ounce, 69% Cotton/29% Modacrylic/1% Elastane/1% Aramid FR denim Meets the performance requirements of NFPA 70E 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 Carhartt FR label sewn on back pocket; NFPA 2112 / CAT 2 label sewn on waistband Imported