Birkenstock Madrid Big Buckle Narrow Fit features a single strap with an oversized metal pin buckle on oiled nubuck leather and the brand’s contoured cork-latex footbed for all-day support. Product image is indicative. Key attributes: Cognac | Oiled nubuck leather | Contoured cork-latex footbed | Flexible EVA sole | Ages to a unique patina with wear | Adjustable strap with large metal pin buckle | Anatomically shaped cork-latex footbed for support | Soft leather lining | Single wide strap | Open-selvage finish | Large metal pin buckle | Color-matched smooth leather lining | Dimensions & fit: Narrow fit | Composition & care: Oiled nubuck leather (upper) | Leather footbed lining | Cork-latex footbed | EVA outsole | Avoid high heat.