Everyone remembers their first pair of Birkenstocks, and newbies and season veterans alike just love the Boston SFB Heritage from Birkenstock Women's. The soft, smooth leather upper features an adjustable buckle that allows you to achieve an ideal fit, while the leather lined footbed molds and shapes to your foot over time for a custom feel. Beneath, a lightly tractioned outsole allows for flexible, durable, shock absorbent traction. materials: Leather upper. Leather lining. Manmade sole. measurements: Heel measures approximately 0.5" item details: Slip-on closure. buckle. country of origin: Germany.