This warm and lightweight flame-resistant fleece balaclava offers a soft velour inner shell, combined with a jersey outer shell. It is constructed of a 5.8-ounce Nomex/Kevlar blend, sewn with Kevlar thread. Clothing has an arc rating of 9.7 cal/cm2. Meets NFPA 70E Hazard Risk Category 2 and ASTM F1506.