These are for outdoor play, such as playing in a sandbox. They were only used 2-3 times when it snowed, and are still clean with no mud stains. They are free size, but I think they are around 90cm. Colorful kukku hippo baby pants with a storage bag. - Brand: kukku hippo - Color: Blue/Multi-colored - Material: 100% Polyester - Size: Unknown, but for baby clothes (~95cm) - Accessories: Comes with a storage bag Thank you for looking.