Birkenstock Boston Soft Footbed Regular Fit combines a matte gray nubuck upper with a contoured cork footbed for ergonomic, all-day wear. Product image is indicative. Key attributes: Gray | Nubuck leather | Ergonomic cork footbed | Anti-slip sole | Flexible sole | Adjustable wide strap with graphite buckle | Closed toe with open heel (mule silhouette) | Classic mule silhouette | Matte nubuck finish | Subtle embossed brand marking | Dimensions & fit: Sole height at highest point: 3.5 cm | Regular Fit | Composition & care: Upper: oiled nubuck leather | Footbed: cork | Footbed lining: suede | Outsole: EVA