This is an Arnold Palmer AP6621 leather back band sandal, size M. It's a men's sandal, with an outsole of approximately 27cm and a width of 10cm. The color is black. This item is still sold on Rakuten, Amazon, and other sites. According to the manufacturer, size M is for 25cm-25.5cm, but reviews suggest that going up one size is advisable. Therefore, it's recommended for those who usually wear 24cm-24.5cm. It has only been tried on and is unused.