To protect your head, neck and ears from the elements, the 6952 Shoulder 3-Layer Hard Hat Liner with Sherpa Lining has three layers of insulation: quilted shell, foam mid-layer and sherpa fleece lining. Quick-drying lining provides a soft, cozy interior to keep your head warm in harsh, cold climates. Liner fits comfortably under hard hats without adding too much bulk. Foam insulation provides an additional layer of thermal protection. Hook-and-loop closure creates a customizable fit. Attach four exterior, hook-and-loop closures to the interior of a hard hat for extra security and warmth. Elastic strip on the forehead area keeps the liner snug against the face to trap body heat so cold stays out. Small pockets by ears hold regular-size hand warmers (not included). This liner is ideal for workers needing head protection in cold environments. For extra face coverage, attach N-Ferno 6870, 6872 or 6874 mouth covers (not included).