Great slippers - sandals with toe cutouts. The sandals have a buckle that will allow for proper strap adjustment. The Flexi-B System sole with holes will allow for adequate shoe ventilation. The toe box is stiffened. The flexible, non-slip, contoured sole makes walking easier and makes the feet less tired. When choosing a size, please refer to the size chart. 18-12/19-12,5/20-13/21-14/22-14,5/23-15/24-15,5/25-16/26-16,5cm