HRC4 NomexIIIA® Arc Rating EBT 69.5 calories/cm². 5.3 oz. 93% Nomex® aramid/ 5% Kevlar® aramid/ 2% other fiber, water repellant. Insulation-14.2 oz. quilted Nomex® wind and moisture barrier. Three large patch pockets w/ concealed snaps, one inside chest pocket and sleeve pocket. Striping configuration meets the CSA standard. Royal Blue.