The OccuNomix Sherpa Lined Insulated Winter Hard Hat Liner SS551 delivers exceptional protection and comfort in freezing work conditions. Engineered with a 100% cotton twill outer shell and a cozy Sherpa lining made of 50% acrylic and 50% polyester, it ensures warmth and breathability. The liner includes two Tyvek™-lined warming pack pockets for enhanced insulation, an elastic band for a secure fit, and a removable mouthpiece for adjustable coverage. A reflective strip positioned above the neck increases visibility, making it perfect for industrial and construction settings exposed to cold, wind, and wet weather.