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. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor® in a sophisticated nubuck look which boasts a texture and color that could almost be mistaken for real leather. Anatomically shaped cork-latex footbed Upper: Birko-Flor® nubuck Footbed lining: suede Sole: EVA Details: one strap with an individually adjustable metal pin buckle The success of BIRKENSTOCK is rooted in its commitment to the art of making orthopedically inspired shoes. Over the centuries, it has built up a wealth of unparalleled experience that it has passed down from one generation to the next, with each generation cultivating and further expanding this knowledge. The company’s roots can be traced back to 1774. BIRKENSTOCK is not only one of the top five global footwear brands, it is also one of the most well known German brands in the world. Their core products are their unique, anatomically shaped footbed. BIRKENSTOCK invented the footbed and has also shaped the meaning of the term "footbed", which is so common today. The footbed is not only a unique, revolutionary product concept that paved the way for a completely new market. It's also a core idea and a reference point for everything that they do. Now and in the future. Everyone should have access to their footbed! excellent comfort high functionality high-quality materials from sustainable sources their products = wellbeing.