Arizona Big Buckle Birko-Flor PatentArizona Big Buckle Birko Flor Patent Patent Fuchsia Fusion The BIRKENSTOCK Arizona is a genuine classic that has been delighting both men and women for decades. This simple sandal with two straps stands for timeless design and has long held cult status thanks to its comfort factor. The upper is made from the skin friendly, hard wearing synthetic material Birko Flor with a shiny patent coating. Anatomically shaped cork latex footbed Upper: Birko Flor