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. A PrimaLoft yarn lining makes for a supremely cozy piece of kit. High thermal insulation in a lightweight, breathable fabric, providing warmth without bulk for high intensity activities in very cold weather. Made with 58% of recycled content. Elastic fabric that moves in all directions for improved comfort and freedom of movement. Can be worn under a helmet. Seams that are flat on both sides to prevent irritation and chafing for all-day comfort.