Size: One Size Fits All Color: Black [Size] One Size Fits All. Flat size: approx. 28*25cm. Head circumference: 54~60cm. Stretchy. [Main Material] Acrylic + Polyester. Made with a very soft, thin gauze-like fabric that can be worn comfortably without irritation. [Excellent Stretch & Amazing Knit Cap] This stylish knit cap has excellent elasticity, fitting comfortably on your head for a relaxed wear. It won't fall off even when riding a bicycle. Despite its large size, it doesn't look sloppy and creates an elegant look. It fits perfectly whether worn deep or shallow! [Excellent Breathability & Gentle Fabric] This knit cap can be worn casually, making it comfortable for everyday use! It's highly breathable, so your hair won't get wet from sweat! The gauze-like texture makes it suitable for year-round wear. It gently wraps your head with a light feel. Designed for a stress-free fit. [Simple Design & Convenient to Carry] This simple watch cap is timeless and matches any outfit. It's a must-have item that can be used all year round. The thin fabric of the knit cap allows it to be folded small! It's lightweight and not bulky, so you can put it in your bag when you're not wearing it. [Unisex & Versatile for Various Occasions] One size fits all, suitable for people of all ages and genders. Try wearing it with various outfits for casual outings and everyday use. It's an all-season type that can be used not only in summer but also in spring and autumn.