The BIRKENSTOCK Siena boasts a refined appearance. Crossed straps give the sandal its unique and special look. The tonal footbed rounds off the shoe’s look of sophistication. The upper is made from high-quality nubuck leather. FEATURES • BIRKENSTOCK classic footbed: anatomically shaped cork-latex footbed • Upper: nubuck leather • Footbed lining: microfiber • Sole: EVA • Details: two crisscrossed straps, one with an individually adjustable metal pin buckle • Made in Germany Size 40 - narrow fit