Care instruction: Hand wash in cold water (<30 ?/ 80?) with silk/mild detergent. Do not use strong alkali or disinfectant. Line dry in the shade. Iron on the reverse side with a cool iron. Suitable for daily wear: Silk is a kind of all-weather fabric with natural temperature regulation characteristics. Silk cap can sleep in cold winter and prevent hair sunburn in hot summer, silk material keeps the scalp constant temperature and promotes hair growth. Perfect for children: It's so soft that you can barely feel you're wearing it. At night to protect hair from tangling. It doesn't slip off at night or squeeze your head. With beautiful color and soft touch, our silk sleep night cap is a perfect gift for your kids. Protect hair health: Due to the natural protein structure, silk has high absorbency and can absorb dust and grease on the scalp surface, help you wash your hair less. Recommend this for anyone with long or short, straight and curly hair, it really cuts out any frizz from friction, protect damaged hair tips. Downright luxurious material: Exterior modal and lining 100% Pure Mulberry Silk. Modal is wrinkle-resistant, with soft tentacles, easy to clean, and can be folded at will. Silk is smooth and soft, which protects the hair. The hidden adjustable strap allows you to tighten or relax according to your own preferences. Not big like normal bonnet, but a snug fitted cap. Suitable for all kinds of head types.