The BIRKENSTOCK Boston is a true classic that can be worn easily all year round. It features a sophisticated and individually adjustable design. The upper is made of particularly soft suede that hugs the foot like a second skin. The strap is made of extra thick oiled nubuck leather with a raw edge finish. The anatomically shaped cork-latex insole provides comfort. Upper: suede; oiled nubuck leather. Insole lining: suede. Sole: EVA. Details: one strap with an individually adjustable metal buckle. Made in Germany.