The N-Ferno 6851 Fleece Winter Hard Hat Liner is designed to provide lightweight warmth and dependable comfort beneath hard hats and safety helmets in cold working conditions. Made from high-quality thermal fleece, it features a dual-layer lower section for added insulation and a single-layer top that reduces bulk while maintaining a comfortable fit.

The full-length design provides coverage over the head, ears and neck, while the extended back tucks easily into jackets to help seal out cold air during outdoor work. The 4-way stretch fleece accommodates a variety of head sizes, and four exterior attachment points integrate easily with hard hat and safety helmet suspensions. An adjustable hook & loop chin strap keeps the liner securely in place throughout the workday.

Built for demanding environments, reflective accents help improve visibility in low-light conditions, while integrated ear pockets accommodate optional warming packs (sold separately) for added warmth in extreme cold. Machine washable for easy maintenance, this low-profile liner delivers lasting comfort without compromising compatibility with required head protection.