The new ThermoNet Hinged Balaclava helps you battle the elements even in the harshest conditions. Made from our warmest technical fabric, THERMONET, protects from wind two-and-a-half times more than standard fabrics and retains two times more heat. Primaloft fibers provide ultimate insulation and lightweight warmth. Flatlock seams and 4-way stretch, paired with a helmet-compatible fit and easy pull-down design, provide versatility and comfort in extreme conditions.