Birkenstock Ramses Black BirkoFlor。Like new Sandals. Note- There is some evidence of retailers stickers on the footbed of the sandals. Cleaned, not sticky. The BIRKENSTOCK Ramses is the men’s version of the popular Gizeh thong sandal. The slightly wider strap lends this sandal a strikingly masculine appearance. 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. Anatomically shaped cork-latex footbed Upper: Birko-Flor® nubuck Footbed lining: suede Sole: EVA Details: thong with an individually adjustable metal pin Materials /Construction Upper material: Birko-Flor® Birko-Flor® is a skin-friendly, tear-resistant and easy-to-care-for synthetic material which is exclusively used by BIRKENSTOCK. 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