An icon of timeless design and legendary comfort, the Arizona sandal has been defining style since 1973. The two-strap look is updated in our signature Birkibuc®, developed for durability and lightly brushed for style. Designed on an original contoured footbed for the ultimate in support. Contoured cork-latex footbed creates custom support with wear   Birkibuc® synthetic upper   Suede footbed lining helps keep you comfortable   Flexible EVA sole   Two adjustable straps with metal pin buckles Upper material:  Birko-Flor® Nubuck The look and feel of Birko-Flor® Nubuck is an almost perfect imitation of authentic nubuck leather. Insole:  Natural leather Natural leather can be recognized by its untreated surface. BIRKENSTOCK purposely does not treat surface grains and other characteristic features. BIRKENSTOCK uses sturdy leather with a thickness of 2.8 to 3.2 millimeters as upper material. Footbed material:  Cork Cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning. Outsole:  EVA EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned.