Viking Firewall FR Unstriped Contractor Coverall meets PPE CAT 2. This dual hazzard protection coverall is NFPA 2112-2012 and NFPA 70E-2015 certified as well as is made of 7oz Westex 88% cotton/ 12% nylon flame resistant fabric. NFPA 2112-2012, 70E-2015, OSHA 1910.269 7oz. Westex by Milliken flame-resistant fabric - 88% cotton/12% nylon