Birkenstock Madrid Big Buckle Nubuck Leather Sandals Ecru Size 40. An icon since 1963, the Madrid redefined sandals with its contoured footbed and a single, sophisticated strap. A gleaming big buckle accessorizes the style to stand out. With an original contoured footbed for support, it'll feel uniquely yours wherever you take it. • Contoured cork-latex footbed creates custom support with wear • Premium nubuck leather upper • Suede footbed lining helps keep you comfortable • EVA sole is flexible & lightweight • Adjustable strap with oversized metal pin buckle • Made in Germany These classic slip-on Birkenstocks get a cool eye-catching update with an oversized pin buckle on a nubuck leather strap with an oiled finish. Worn just one time, these are in fantastic condition.