N-Ferno 6882 Hard Hat Winter Liner, FR Rated, Thermal Fleece Lining, Shoulder Length Banox FR3 Shell FLAME RESISTANT(FR ) Meets Performance Requirements of ASTM F1506 and NFPA 70E (CAT 3). Arc-rated; ATPV rating of 20 cal/cm2 FULL WINTER HEADWEAR Thermal modacrylic fleece lining and long length design keeps head, ears and neck warm and covered ADDITIONAL WARMTH: Pockets at ears designed to hold warming packs for added warmth and comfort in extreme temperatures ELASTIC GAP CONTROL: Closed gap control between liner and forehead keeps the heat in and cold out HOOK AND LOOP STRAPS FOR SECURE ATTACHMENT: 4 evenly spaced straps included on the outside of liner to attach to hard hat or helmet suspension. Optional 6870 mouthpiece (not included) can also be attached for extra face coverage