NWB Birkenstock Women’s Madrid Big Buckle Sandal Shearling Olive EU39 The Birkenstock Women’s Madrid Big Buckle Sandal Shearling – A strap, a buckle and a contoured cork footbed are masterfully combined to create the original Birkenstock sandal – the Madrid. This version is incredibly cozy featuring a color-coordinated genuine shearling lining, shearling lined straps and a big, elegant pin buckle. The upper is a soft yet durable oiled leather. Anatomically shaped cork-latex footbed Upper: oiled nubuck leather with shearling lining Footbed lining: shearling Sole: EVA Details: strap with a big, individually adjustable metal pin buckle; color-coordinated footbed “Made in Germany” Upper material: Natural leather Footbed material: Cork