Introducing Our New Rasco FR Gray Lightweight Twill Work Shirt - 7.5 oz. Rasco FR has designed this FR Shirt with the end user in mind. With it's light weight, at 7.5 oz, NFPA 2112 protection that is UL Classified, ASTM F1506 UL Classified, NFPA 70E, an a HRC 2 rating - it is tough enough to meet Oil Field and Gas Production requirements everyday. With two chest pockets and snaps it is a comfortable fit, light weight and durable. Rasco makes FR Clothing very affordable. Long Sleeve Western Style FR Shirt 100% FR cotton. Button down snap-closure. Two chest pockets with flaps and snap-closure. Spread collar. Three snap cuffs. Sleeve vent.