Birkenstock Arizona Birkibuc Mens Sandals - Sand/Beige Made in Germany Men's Size EU 45/ US 12 An icon of timeless design and legendary comfort, the Arizona sandal has been defining style since 1973. The laid-back look comes in durable Birkibuc® for a brushed, leather-like finish. Complete with legendary BIRKENSTOCK design elements, like a contoured cork-latex footbed for the ultimate in support. Details: Contoured cork-latex footbed creates custom support with wear Birkibuc® synthetic leather upper Suede footbed lining helps keep you comfortable EVA sole is flexible and lightweight Two adjustable straps with metal pin buckles “Made in Germany” quality stamp on footbed Materials: 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