【Product Features & Basic Specifications】 Features: ・This balaclava provides excellent insulation with a 3-layer breathable and windproof construction. ・It uses a breathable and windproof film with a breathability of 9000g/m2/24h, preventing stuffiness while blocking wind. ・The fleece lining provides excellent warmth, and the breathable and windproof laminate shuts out cold air from the outside! ・Helmet compatible Material: 97% Polyester, 3% Polyurethane Color: Black Size: Free Weight (g): Approximately 91 Functions: Breathable, Windproof Breathability (g/m2): 【Waterproof Film】9000/24h ※Although this product is new and unused, please note that the package has been opened. ※Also ideal as an inner layer for construction helmets.