6.5-ounce, 93% cotton/7% spandex knit •Meets the performance requirements of NFPA 70E •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 •Spandex-reinforced rib-knit crewneck •Side-seam construction minimizes twisting •Carhartt FR and NFPA 2112/CAT 2 labels sewn on side seam •Imported