The N-Ferno 6952 Winter Hard Hat Liner features three layers of insulation, with a quilted shell, foam mid-layer and sherpa lining for enhanced warmth and comfort. This lightweight shoulder-length thermal liner is extra long to keep head, ears and neck covered while fitting comfortably under helmets or hard hats without bulk. The quick-drying polyester sherpa lining delivers all the benefits of real sheep’s wool to keep wearers warm without bulk or discomfort. Also features a quilted