3-Layer thermal liner - shoulder length design keeps head, ears and neck warm and covered. Fire-resistant outer shell - 60% Modacrylic/40% cotton twill blend with inherent flame resistance and self-extinguishing properties. Mid-layer - foam insulation provides an additional layer of thermal protection for extremely cold environments. Warm lining - 100% polyester fleece. Lightweight - fits comfortably under a helmet or hard hat without feeling too bulky. Elastic fit - elastic gather at forehead closes the gap between liner and forehead to keep the heat in and cold out. Hook and loop straps - 4 evenly spaced straps included on the outside of liner to attach to hard hat or helmet suspension. Optional face mask- N-Ferno® 6870, 6872 or 6874 mouthpieces (sold separately or purchased as a kit) can also be attached for extra face coverage. Optional warming packs- pockets by ears to hold hand warmers (sold separately). N-Ferno Black Modacrylic/Cotton Blend/Polyester Winter Liner | 16877
