6-ounce 100% cotton FR jersey - Loose Fit (formerly known as Original Fit) - Loose and Original labeling is a change in name only sizing/fit does not differ. Stock may vary in labeling. - Built with Force technology to wick sweat dry fast and fight odors - FastDry technology keeps you cool for all day comfort - Rib-knit crewneck and cuffs - Side-seam construction minimizes twisting - Carhartt FR label on hem - NFPA 2112/CAT 2 labels swen on sleeve seam - Carhartt graphic on chest - Meets the performance requirements of NFPA 70E and ASTM F1506 - UL classified to NFPA 2112