Birkenstock Boston Narrow Fit delivers the classic clog comfort with a contoured cork-latex footbed and supportive heel cup for all-day wear. Product image is indicative Key attributes: Concrete gray | Natural leather | Contoured cork-latex footbed for support | Breathable natural leather upper | Lightweight EVA outsole | Adjustable metal pin buckle strap | Easy on/off slip-on design | Closed-back clog silhouette | Single adjustable strap | Contoured footbed shape | Dimensions & fit: Narrow fit | Composition & care: Upper: Natural leather | Footbed lining: Suede | Footbed: Cork-latex | Outsole: EVA