Birkenstock Madrid Vegan Big Buckle Sandals Effortlessly elegant. This season, the iconic Madrid sandal goes vegan with a 100% natural cotton canvas upper. A printed oversized buckle brings the style together with a statement finish. Complete with legendary BIRKENSTOCK design elements, like a contoured cork-latex footbed that shapes to you for custom support. -Contoured cork-latex footbed creates custom support with wear -Vegan 100% natural cotton canvas upper -Microfiber footbed lining -EVA sole is flexible and lightweight -Adjustable strap with printed oversized pin buckle -Made in Germany Size: 36 NWT