Walls Men's Flame Resistant Utility Jacket 88% Cotton/12% Nylon Machine Wash Arc Rating, ATPV-15.6cal/cm, HRC Level 2 7 oz. 88% cotton/12% high tenacity nylon twill shell 7 oz. 100% cotton twill lining Inside front facings Garment, fabric and trims aare NFPA 2112 UL certified