Birkenstock Sierra | eBay。Birkenstock® Sierra Oiled-Leather Sandals for Ladies bring the best women\'s sandals for camping, hiking, travel, and all your adventures. Sierra Sandals pair iconic Birkenstock styling such as nubuck leather uppers, classic adjustable buckle closures, and suede footbed liners with direct-injection outdoor-ready outsoles for increased traction and durability. The uppers boast especially thick, oiled nubuck leather. The anatomically shaped cork-latex footbeds give an extra-cushy feel, while 2-component polyurethane (PU) soles ensure great durability. Imported. * Anatomically shaped cork-latex footbeds * Oiled nubuck-leather uppers * Suede footbed lining * 2-component PU soles * Dual straps, each with adjustable metal pin buck * NEW IN BOX