The BIRKENSTOCK Boston is a true classic that can be worn all year round. With its refined, individually adjustable design, Boston has long since achieved legendary status. The particularly thick, oiled nubuck leather upper has a raw edge design.Anatomical cork and latex footbedUpper: oiled nubuck leatherOversole: suede leatherSole: EVADetails: a strap with an individually adjustable metal buckle "Made in Germany "Upper: Greased leatherThe greased leather is recognizable by its untreated surface. BIRKENSTOCK chooses not to treat the ribs and other characteristic features. For the upper, BIRKENSTOCK uses a leather of 2.8 to 3.2 millimeters.Insole: InsoleThe hypoallergenic and flexible leather insole gently hugs the foot and adapts to its contours. The open-pore surface is particularly thermoactive and keeps the feet at a comfortable temperature even during intense physical activity.Footbed Material: CorkCork is a renewable raw material that is extracted from the bark of the cork oak tre...