Birkenstock Boston clog is a timeless, backless loafer. Part-slipper, part-slip-on, it reflects Birkenstock’s commitment to functional, quality footwear. Since 1976, the Boston Birkenstock has kept its iconic contoured footbed. Whether in orthopedics or fashion, the original cork-latex footbed has remained the foundation—moulding to the foot and helping to walk as nature int***ed. Today, Boston clogs continue to transc*** age, tr***s, and geography; the brutalist-inspired upper is the only element that changes. This Boston 'Birk' has wool on the single-buckle upper. Wool Uppers, Natural Leather Insole, Cork-Latex Footbed, EVA Sole Unit, Made in Germany, Style Code: 160371, Shop All Birkenstock Shoes, Shop All Slip On Shoes, Shop All Birkenstock Boston Clogs. Birkenstock Boston Clog - Anthracite Wool, Size UK 9.5 | ***. Clothing