These were purchased a few years ago as children's room shoes. The inside of the shoes is fluffy, so I think your feet will be warm in the winter season. The size is EU33, which is about 20-21cm in Japanese size. They also look very cute and are very adorable to wear(*´∀`)♪ These are perfect for the coming season. They are ideal for everyday use, as well as for piano practice. Why not take this opportunity!