Material: The outer shell is made of high-quality acrylic, which has excellent warmth retention. The inner lining uses soft polyester for extra comfort. Warmth retention: The double-layer structure design effectively prevents cold wind from invading and keeps the head warm. Comfort: The soft lining fabric fits the head, reduces friction, and is comfortable to wear without irritating the skin. Lightweight design, no pressure when worn for a long time. Good elasticity: Highly elastic material, suitable for various head shapes, ensuring fit and comfort. Not easy to deform, strong durability, and long-term use to maintain the original shape. Applicable scenarios: Suitable for daily wear, outdoor activities, sports and leisure and other occasions. Simple and stylish design, with a variety of styles to enhance the overall styling.