The BIRKENSTOCK Arizona is a true classic. Modeled on the cork sandal, it is made from ultra light and highly flexible EVA. The high-quality, odor-neutral EVA has been tested for harmful substances and combines numerous positive attributes. It’s waterproof, ultra lightweight, washable and therefore extremely easy to care for. Anatomically shaped BIRKENSTOCK footbed in EVA Upper/lining/sole: one-piece EVA Details: waterproof, washable, ultra lightweight “Made in Germany” Upper: EVA EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with very good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned. Insole: EVA Footbed material: EVA Outsole: EVA