Birkenstock Madrid Big Buckle updates the brand’s classic single-strap sandal with an oversized metal pin buckle and a contoured cork-latex footbed for long-lasting support and comfort. Product image is indicative. Key attributes: Black | Oiled nubuck leather | Semi-exquisite anatomical cork and latex footbed for support | Lightweight, shock-absorbing EVA outsole | Balanced foot climate from smooth leather insole | Oversized adjustable metal pin buckle | Single-strap design | Smooth leather-lined insole | Minimalist single-strap silhouette | Open-edge stitching | Develops a distinctive patina over time | Composition & care: Upper: oiled nubuck leather | Insole: smooth leather | Footbed: cork and latex | Outsole: EVA