Vital Salveo- Outdoor 3WARM Windproof Fleece Winter Bucket Hats Bamboo charcoal Imported Innovative Fiber-- Using germanium material and bamboo charcoal fiber to make the physical activity get more energy and release the far infrared and negative ions to improve blood flow and increasing oxygen-carrying capacity, keep your better performance to maintain an optimal temperature. Unique Design-- With the sandwich concept design, put breathable waterproof PTFE into fleece fabric, not only have the function of water repellency and windproof but also extremely warm in cold weather. Suitable for winter-- The fleece designed to protect your head against the cold winter weather, also increases the sense of design. Multifunctional Accessories-- 3WARM series are extremely warm products, you can wear not only in outdoor activities but also in business travel.