This is a nylon children's cap! I purchased it from a Korean children's clothing website. (I bought it from a Japanese website that imports Korean clothing.) Made of nylon, it's lightweight, easy to wash, and stains come off easily, making it very convenient. The shape is super cute and makes your child stylish♪ My sons used the khaki and navy ones. There's a little bit of dirt on the part that touches the forehead, and there's a faint pen mark on the brim. (I didn't notice it until I took the photos...) Please refrain from purchasing if you are concerned. The colors are easy to wear all year round, so I recommend them! Recommended for those who like ZARA, Markey's, Birthday, etc., and those who like street style or outdoor styles♪ Thank you.