1.Upgrade Material: Made of 100% high-quality acrylic, it is lighter, warmer and softer than ordinary acrylic, and will never irritate children's skin. 2.Cleaning method: It is recommended to wash by hand. Soak the Winter Beanie Hat in warm water with a mild soap and make it as clean as new Flatten it before air drying to reduce wash creases. 3. [Very comfortable]: Good flexibility, suitable for 3-8 years old. A child's beanie is flexible enough to last for many years. It completely covers the ears and neck for extra protection and warmth. 4.: The children's hat is made of plush lining to increase warmth and heat preservation, and is designed with soft, thick and elastic knitted material, which has a longer service life and is suitable for spring, autumn, autumn and winter.