6-ounce, 100% cotton FR jersey. Meets the performance requirements of NFPA 70E and ASTM F1506. UL® classified to NFPA 2112. 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 sewn on hem. NFPA 2112 / CAT 2 labels sewn on sleeve seam. Carhartt graphic on chest