Birkenstock Boston Wire Buckle Narrow Fit pairs the brand's original contoured cork footbed with a nubuck upper and an adjustable Wire Buckle for cushioned, everyday wear. Product image is indicative. Key attributes: Black | Nubuck leather | Contoured cork footbed for arch support | EVA outsole for lightweight cushioning | Adjustable strap with metal Wire Buckle | Slip-on mule construction | Suede footbed lining | Closed-toe clog silhouette | Wire buckle detail | Smooth nubuck finish | Dimensions & fit: Narrow fit | Composition & care: Upper: Nubuck leather | Insole: Natural leather | Footbed: Cork | Outsole: EVA | Brush with a suede/nubuck brush to restore nap; remove stains with a nubuck cleaner or eraser; apply water & stain repellent as needed; do not machine wash; air dry away from direct heat.