Birkenstock Madrid Birko-Flor size 37 /6.5 / 7 New in box The BIRKENSTOCK Madrid is the oldest member of the family of models, making it a veritable classic. Launched as a “gymnastics sandal” half a century ago, this simple single-strap model has gone on to become a firm fashion favorite. This version features a metallic glossy effect. 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: strap with an individually adjustable metal pin buckle “Made in Germany”