New, Unused ZARA Boots Size 37 I usually wear shoes that are 23.5cm or size M, but the size felt just right. I think you can adjust the fit by wearing socks or using an insole. I think those who usually wear around 24cm can also wear them. I only tried them on at the entrance. Geometric block heel ankle boots. Elastic side gores. Removable ankle strap with metal buckle and faux pearl stud appliqués. The second image shows the boots without the belt. You can change the look with the two-way design. Heel height: 7.5cm Chelsea boots