11-ounce 69% Cotton/29% Modacrylic/1% Elastane/1% Aramid FR denim - Meets the performance requirements of NFPA 70E UL classified to NFPA 2112 - Rugged Flex stretch technology - Built with Force technology - FastDry technology - Sits at the waist - Strong sewn-on-seam belt loops - Carhartt FR label sewn on back pocket - NFPA 2112/CAT 2 label sewn on waistband - Imported