Birkenstock Madrid Big Buckle updates the classic single-strap sandal with an oversized adjustable metal buckle and a soft nubuck upper. Product image is indicative Key attributes: Beige | Sandcastle | Nubuck leather | Contoured cork-latex footbed for support | Lightweight, flexible EVA sole | Suede footbed lining for comfort | Adjustable metal pin buckle | Single-strap slip-on design | Oversized pin buckle detail | Minimalist single-strap silhouette | Made in Germany quality stamp | Composition & care: Upper: nubuck leather | Footbed: cork and latex | Footbed lining: suede leather | Sole: EVA