The BIRKENSTOCK Boston is a veritable classic that can easily be worn all year round. The Boston has a legendary status thanks to its sophisticated, individual design. The upper is made from extra thick, oiled nubuck leather with an open-selvage finish. * Anatomically shaped cork-latex footbed * Upper: oiled nubuck leather * Footbed lining: suede * Sole: EVA * Details: one strap with an individually adjustable metal pin buckle *Made in Germany AVAILABLE IN NARROW FIT ONLY!!! ### Upper material: **Oiled leather** Oiled leather is one of our favourite types of leather. Its oily waxed surface makes for a unique colour effect and develops a beautiful patina. The oily finish of our natural leather products results in colour variation, making each and every pair unique. ### Insole: **Natural leather** Natural leather can be recognized by its untreated surface. BIRKENSTOCK purposely does not treat surface grains and other characteristic features. BIRKENSTOCK uses sturdy leather wi