birkenstock women's birk-551253 arizona sandals, black, 38 birkenstock the arizona birko-flor black 2 strap upper from birkenstock with a cushioned orthotic footbed provides excellent arch and metatarsal support. durable eva outsole, cork footbed molds to each individual foot to provide a custom fit. this birkenstock sandal is a genuine classic, emphasizing the handcrafted and natural look of stylish sandals. a comfort legend and a fashion staple.