RASCO FR NR755 Men's FR Shirt Navy 4X-Large Long 7.5 oz FR Flameshield, 100% Cotton Twill Snap closure Certified NFPA 2112 and ASTM F1506 by UL Sleeve vent ATPV 9.8 cal/cm2 HRC 2 NFPA 70E Compliant&nbsp;