Firewall Viking FR 7 oz. Flame Resistant Long Sleeve Shirt 88% cotton/12% nylon Imported 7 oz. Westex by Milliken flame-resistant fabric - 88% cotton / 12% nylon TPP Value: Contact 8.5, Spaced 9.0; ARC rating ATPV: 9.2 cal/cm2 CAT 2 (HRC 2) Features 2 chest pockets with button closure Button front closure with full-length placket and button-down collar Full sleeves with adjustable button wrist cuffs