N-Ferno 6842 Hard Hat Winter Liner, Hi Vis, Thermal Fleece Lined HIGH VISIBILITY Bright lime polyester and reflective piping for increased visibility on dark and cloudy days FULL WINTER HEADWEAR Thermal 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