Children's sandals are made of a fabric upper. They have an open toe and a partially open heel. Fastening at the front and at the ankle with Velcro will allow for proper adjustment. The insole made of eco leather has delicate protrusions. The sandals were placed on the platform. When choosing a size, please refer to the size chart.21-13,5/22-14/23-14,5/24-15/25-15,5/26-16/27-17/28-18/29-18,5/30-19,5/31-20/32-20,5/33-21/34-21,5/35-22,5/36-23/37-23,5/38-24cm