Birkenstock Boston BS mules pair a closed toe and open heel silhouette with a suede upper and an anatomically shaped, leather-lined footbed for all-day comfort. Product image is indicative. Key attributes: Gray | Suede | Anti-slip rubber outsole | Cork midsole for insulation and support | Durable dual-layer sole | Adjustable strap with matte metal buckle | Anatomically shaped leather-lined footbed | Open heel for easy on/off | Closed toe mule silhouette | Streamlined compact shape | Visible Birkenstock inscription | Dimensions & fit: Sole height: 2 cm | Sole height at the highest point: 2 cm | Composition & care: Suede | Leather | Cork | Rubber | Metal