The design of the BIRKENSTOCK Catalina was inspired by the classic Madrid with a strap and metal buckle. The slightly wider strap lends this sandal a modern elegant appearance. The color-coordinated footbed rounds off the shoe’s look of sophistication. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor® in a sophisticated nubuck look which boasts a texture and color that could almost be mistaken for real leather.