Birkenstock Boston Bold Gap clogs The signature slip-on clog from BIRKENSTOCK - the Boston. A casual-wear staple that is perfect all year round with a simple, adjustable design and contoured cork footbed that forms to the shape of your foot. This modern version of our iconic Boston clog features a double prong brass tonal buckle and a high traction rubber outsole. The cushioning midsole made from EVA promotes stability and comfort. Made of premium leather with edge embossing Anatomically shaped cork-latex footbed Upper: premium leather Footbed lining: suede Sole: rubber-EVA sole Details: strap with an individually adjustable metal pin buckle “Made in Germany” NWT in the box- has natural occurrences in the leather- see all pics Size 46 EU (13 US) regular fit Limited edition Black