The BIRKENSTOCK Madrid is a true classic, delighting the fashion world with its minimalist design. The Big Buckle version features a large, elegant pin buckle. The semi-exquisite sole is fully lined in supple piumato leather for exceptional comfort. The upper is made of high-quality natural leather with a glossy patent coating. Anatomical cork-latex sole, semi-exemplary Upper: natural patent leather Footbed lining: piumato leather Sole: EVA Details: strap with large, individually adjustable metal buckle; color-coordinated details "Made in Allemagne Size EU39 translates to US 8-8.5 Narrow.