Thank you for looking! H&M Colorful separate swimsuit for kids. The size isn't indicated on the main body, but the paper tag said 6-8y. (I've thrown away the paper tag) I think it's around 100-110 in Japanese sizes. My daughter used it for two seasons. She didn't go to the sea. She mainly used it in our home inflatable pool or at swimming pool facilities. Please feel free to ask if you have any questions＾＾