These are bisgaard rain boots. I purchased them at a department store, but my child outgrew them while they were stored at home. The size is marked as 35, which corresponds to approximately 21.5 to 22 cm. They are unused, but please understand that they have been stored at home. They were stored in their original bag, so the bag has some dirt on it. "Bisgo," a leading children's shoe brand from Denmark. Bisgaard rain boots, a popular Scandinavian shoe brand supported by the Danish royal family. They absolutely do not use PVC, which is harmful to the environment and health. Materials are limited to natural rubber. They use a sufficient amount of raw materials to create a solid structure. The sole is designed to protect the soles of the feet from impact with the ground. Because rain boots also need to fit well, they create lasts (shoe molds) for all sizes. Based on these and other policies, they have created rain boots that combine children's foot health with innovative Scandinavian design. Size... 17cm and up