The BIRKENSTOCK Madrid model is the oldest member of the family, which has established it as a true classic. Launched half a century ago as a gym sandal, this purist one-strap model long ago became a stylish accessory. In this version it stands out for the metallic shine effect. The upper material is made of Birko-Flor®, a resistant and skin-friendly synthetic material. Anatomically shaped cork and latex insole Upper material: Birko-Flor® Insole upper layer: suede Sole: EVA Details: strap with a metal tang buckle with individual adjustment Made in Germany