Winter hard hat liner has 3 layers of insulation for extreme warmth. This lightweight thermal liner is shoulder-length to keep head, ears and neck covered and fits comfortably under helmets or hard hats without feeling too bulky. The fire-resistant outer shell and lining are made of 60% modacrylic cotton and 40% cotton twill blend to stand up to tough environments and meets requirements of performance specification ASTM F1506; classified CAT2 according to NFPA 70E. Arc-rated; ATPV rating of 27 cal/cm2. A mid-layer of 3M FR Thinsulate provides maximum warmth and protection in extremely cold environments. There are four hook and loop straps on the exterior of the liner designed to securely attach to the interior of a hard hat for versatile protection in extreme work environments.

• Shoulder length design keeps head, ears and neck warm and covered (ATPV rating of 27 cal/cm2).
• Flame reistant outer shell is made of Modacrylic cotton-blend twill.
• 3M FR Thinsulate for maximum warmth and protection in extremely cold environments.
• Flame-resistant lining is made of Modacrylic cotton-blend fleece.
• Meets requirements of performance specification ASTM F1506; classified CAT2 according to NFPA 70E. Arc-rated; ATPV rating of 27 cal/cm2.
• Lightweight and fits comfortably under a helmet or hard hat without feeling too bulky.
• Elastic gather at forehead closes the gap between liner and forehead to keep the heat in and cold out.
• Four evenly spaced hook and loop straps included on the outside of the liner to attach to hard hat or helmet suspension.
• N-Ferno 6870, 6872 or 6874 mouthpieces (sold separately or purchased as a kit) can also be attached for extra face coverage.
• Pockets by ears to hold hand warmers (sold separately).