Madrid Big Buckle Sandal Madrid Big Buckle Sandal Pebbled leather upper with EVA sole. Genuine suede lining and smooth leather footbed. Adjustable buckle strap. Anatomically shaped cork-latex footbed. Roomy toe box. Narrow fit. Made in Germany. BIRR-WZ39. 1018866. Since 1774, Birkenstock continues to attract customers with their long-lasting dedication to a comfortable and supportive shoe. First introduced into the US market in 1966, the company with the iconic jute footbed is safely handcrafted and manufactured in Germany, with the finest quality, sustainable, and natural materials. Each classic footbed is perfectly structured with 4 layers that all play an essential role in the shoe's comfort and construction. The shock-absorbing and flexible cork layer relieves pressure on the foot, while other layers improve the shoe's flexibility, shape, and stability. Lovingly crafted, Birkenstocks are instantly recognizable the world over.