XFIRE Pants give the wearer a clean dress pants look without skimping on comfort or protection. Constructed from 7.5 -8oz durable FR 100% cotton woven fabric that is inherently flame resistant the gives ARC rating 8.9 CAL/CM2 - HRC 2 that is certified to meet or exceed NFPA 1975FR, 70E, & 2112 standards. Designed with an engineered dimensional fit that remains comfortable no matter what the job asks. With features like a comfortable slider waistband, extra deep front pockets, knife/accessory pockets and reinforced knees that are designed with special pockets for inserting pads, the pants cannot be beat for utility or comfort.