An elegant model designed with slim stylish crisscrossed straps the Women's Birkenstock Franca Footbed Sandal. Nubuck leather upper in a casual footbed sandal style with an open toe. Slide entry. Three adjustable straps with buckle closures. Smooth lining classic Birkenstock footbed featuring pronounced arch support and a deep heel cup. Flexible shock absorbing EVA outsole. Birkenstock is committed to environmentally friendly operations. A high proportion of the natural materials that we use are from sustainable sources: cork natural latex jute leather wool felt copper and brass are among our most important materials..