Birkenstock Madrid Big Buckle Leather Narrow - High-Shine OysterAn 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 against glossy natural leather. The style is grounded in our original contoured footbed, which we've wrapped in ultra smooth leather for a luxe experience every time. Contoured cork latex footbed creates custom support with wear Natural leather upper with high shine finish Footbed