Thank you for viewing. This is a 100% nylon cap. Size: 54cm. It's in beautiful condition, only worn once outside, besides trying it on. It was convenient and I wanted to keep using it, but I'm selling it because it's too small now. The brim doesn't have any core material, so it easily fits in a pocket! You can crumple it up and it won't wrinkle because it's nylon. It's water-repellent, so I put it on for water play. It's a muted color and cute. The ponytail hole in the back is elastic, so it stretches. It's made of thin, water-repellent nylon fabric that's cool and quick-drying, and dries easily even if it gets wet with water or sweat, so you can wash it right away! It's a convenient cap. I folded it up. It's about the size of a palm (image 6). When my older child, who is size 56cm, tried it on, they said it was tight, but they could wear it. Please check the images and consider purchasing.