The BIRKENSTOCK Boston is a true classic that can easily be worn all year round. With its sophisticated, individually adjustable design, the Boston has long enjoyed legendary status. The upper is made of extra thick, oiled nubuck leather with an open-edge finish. Anatomically shaped cork-latex footbed Upper: oiled nubuck leather Cover sole: suede leather Sole: EVA Details: one strap with an individually adjustable metal thorn buckle Made in Germany