Rasco FR Navy Heavyweight Work Shirt with Snaps - 10.0 oz (5XLarge-Long) 10 oz FR Flameshield, 100% Cotton Twill Snap closure 10 oz FR Flameshield 14 cal/cm2, CAT 2 Western Style Yoke Two Chest Pockets with Flap & Snap Closure, Placket Front with Snap Closure & Three Snap Cuff Closure with Sleeve Vent Industries: Oil & Gas, Electrical, Utility, Combustible Dust, Welding. Certifications: NFPA 2112 (certified by UL), ASTM F1506 (certified by UL), NFPA 70E, OSHA 1910.269(I)(6)(III), CSA Z462, ATPV: 9.8cal/cm2 - CAT 2 (HRC 2)