These are shoes my son wore for a piano recital. They weren't very dirty since they were only worn on a carpet. I think they would be suitable for formal occasions. The size is 18cm. I found them online, so please refer to the images for reference. They will be shipped in a box with simple packaging. 【Brand Features】 Vans slip-ons are characterized by their simple yet stylish design. They are made for children and offer a comfortable fit. 【Material and Durability】 Made of synthetic leather, they are highly durable and suitable for everyday use. The rubber sole provides excellent grip and is designed to be non-slip. 【Ease of Use】 The slip-on type makes them easy to put on and take off, making them convenient for busy everyday life. - Brand: Vans - Color: Black - Type: Slip-on - Material: Synthetic Leather - Sole Material: Rubber Thank you for looking.