Lightly worn sandal in EXCELLENT condition!! Price-tag sticker residue on lower right foot. Source of below information is Birkenstock Website: The BIRKENSTOCK Rio is a sporty, elegant sandal with a single strap and an additional backstrap that offers reliable and comfortable grip. It’s just the thing for hot summer days! The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor®. Anatomically shaped cork-latex footbed Upper: Birko-Flor® Footbed lining: suede Sole: EVA Details: two straps, each with an individually adjustable metal pin buckle; backstrap “Made in Germany”