N-Ferno 6885 Hard Hat Winter Liner, FR Rated, Versatile Wear Banox FR3 Shell FLAME RESISTANT (FR) ATPV rating 20 cal/cm2. Meets requirements of Performance Specification ASTM F1506; classified CAT2 according to NFPA 70E VERSATILE DESIGN: Allows for different variations of wear with a zipper to separate top and lower parts, as well as button to lift sides if it gets too hot 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 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