Birkenstock Boston Soft Footbed Clogs. So classic and consistently comfortable, the Boston clog has become a coveted, year-round favorite. Velvety suede lends an effortless feel to the style. Featuring an additional foam layer for cushioning, its soft footbed offers extra comfort plus go-all-day support. Cushioned soft footbed creates custom support with wear. Classic suede upper. Suede footbed lining helps keep you comfortable. Flexible EVA sole. Adjustable strap with metal pin buckle. Imported.