This Long Sleeve Work Shirt by Lapco is an FR Shirt – flame resistant, made from 7.0 oz. 100% cotton twill weave fabric. If you're one of those hardworking men in a harsh jobsite, then chances are you need a high quality work shirt that will keep you protected and comfortable. This FR shirt has a classic design with a solid print, double front pockets with flaps and snaps, front and back western yokes, and the snap down placket. This shirt is compliant to the HRC 2, ASTM F1506, and NFPPA.