Description At under seven ounces, this men's FR shirt is light enough to keep you moving through warm weather. It's made of flame-resistant jersey that fights off sweat and odor. The rating labels are sewn right onto the chest pocket for convenience.PRODUCT DETAILS: 6.75-ounce, 100% cotton FR jersey Meets the performance requirements of NFPA 70E UL classified to NFPA 2112 Carhartt FR and NFPA 2112/CAT 2 labels sewn on pocket Built with Force technology to wick sweat and dry fast FastDry technology wicks away sweat and fights odors Side-seam construction minimizes twisting Rib-knit crewneck holds its shape Left chest pocket Imported