BIRKENSTOCK) Material: Smooth leather upper Footbed: Features the signature contoured "footbed" designed based on foot anatomy. Design: Thong (thong) type, characterized by a belt with multiple holes on the instep and an adjustable buckle strap. This is the "Riyadh" model. I believe the size is around 25 cm. There are small stains and scratches, but it has been used only a few times and is still a beautiful item. I cannot reply after purchase, so please feel free to ask any questions. I can also take photos, so please let me know. Please purchase after you are satisfied. #Birkenstock