●Material: Polyester ●Material Composition: 100% Polyester ●Material Composition: Outer Fabric: 100% No material composition ratio information (non-classification fibers (lace); Lining: ●Material Composition: Cotton + Modal (lining), main material uses cotton fabric, which is highly breathable. The fabric feels like gauze and is breathable so it can be used all year round ●One size fits all: Height 11.4 inches (29 cm) x Width 11.0 inches (28 cm), Head Circumference: 22.8 - 24.8 inches (58 - 63It can be folded into a small size, convenient to carry. When not in use, it can be stored in your clothes pocket or in a compact bag. It is very convenient for quick outings or when entering a warm room ●Care Instructions: 100% machine washable, hand wash recommended! Soft and stretchy. It is also fashionable and fashionable ●Great for care or everyday wear. This hat is comfortable for spring, summer and autumn. Widely used for outings, indoor use, anti-cancer and medical hat