Birkenstock Boston Clogs. So classic and consistently comfortable, the Boston clog has become a coveted, year-round favorite. Soft suede lends an effortless feel to the style. Complete with an original Birkenstock footbed that shapes to you for the ultimate in all-day support. Contoured cork-latex footbed creates custom support with wear. Classic suede upper. Suede footbed lining helps keep you comfortable. EVA sole is flexible and lightweight. Adjustable strap with metal pin buckle. Medium/Narrow width. Imported.