If the forefoot is wider, it is recommended to buy one size larger Note: The shoes are not brand logo shoes. We send the shoes as the description. If you don't know how to choose the size, please contact us or tell me your foot length. About odours: New products may have certain odours from shoe materials such as leather, synthetic leather, rubber, fabrics, foams and glue. These odours are harmless to the human body. You can store the product in a cool and ventilated place. The odour will gradually fade after some time. Applicable gender: Kids Sole material: PVC.