Steelgrip CXK 2310 CarbonX Full Face Knit Hood. Hazard Risk Category 2 full face sock hood. Arc Rating 23 cal/cm2 in head area. Arc Rating 12 cal/cm2 in neck area. 2-ply stretch 7.4oz knit CarbonX with 1-ply cape. Flame resistant and launderable. NFPA 70E requires the entire body to be equally covered. Warning: Once a gament has been exposed to an arc flash, it should be removed from service.