A classic Birkenstock® style, these 'Madrid' sandals are updated with big, elegant pin buckles. Classic, feminine lines in supple, nubuck leather and comfortable, molded cork with leather lined insoles. Leather. Germany. Euro whole sizes 36 to 42. 36 (US 5.5), 37 (US 6.5), 38 (US 7.5), 39 (US 8.5), 40 (US 9.5), 41 (US 10), 42 (US 10.5).