Birkenstock Gizeh BF Black unisex sandal. The Gizeh model is a true classic. The individually adjustable bridge sandal has long since become a cult shoe. The upper material is made of Birko-Flor®, which is skin-friendly and durable. Anatomically shaped cork and latex base. Upper material: Birko-Flor®. Insole: Suede. Sole: EVA. Details: anatomically shaped bridge.