Birkenstock Mayari Birkibuc Sandal Supremely comfortable with sophisticated, crisscross straps, the Mayari redefines the thong sandal with a single toe loop. The style comes in smooth Birkibuc® for a brushed, nubuck-like finish. Complete with classic BIRKENSTOCK design elements, like adjustable buckle closures and a contoured footbed for the ultimate in support. Contoured cork-latex footbed creates custom support with wear Birkibuc synthetic leather upper Suede footbed lining helps keep you comfortable Lightweight EVA sole Two straps with adjustable metal pin buckles Made in Germany 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.