Flame-resistant, 6 oz./yd², Nomex® IIIA (93% Nomex® Aramid / 5% Kevlar® Aramid / 2% Other Fiber); Interlined waistband with button closure; Two slack style front pockets; Two set-in hip pockets; Left hip pocket with button closure; Permanent crease; Arc Rating ATPV 5.6 calories/cm²;