Birkenstock Arizona Birko-Flor sandal in mocca color. The Arizona model is a true classic that has been enthusing both men and women for decades. The simple sandal with two straps is synonymous with timeless design and has long become a cult shoe. The upper material is made of Birko-Flor, a skin-friendly and durable synthetic material. Anatomically shaped cork and latex base. Two straps, each with an individually adjustable metal tang buckle.