Introducing Birkenstock's all-terrain Boston clog: the Boston Crosstown. Still a timeless, backless loafer, the main difference of the Boston CT- or Crosstown - is in the sole: the Birkenstock cork footbed is less visible, with protective rubber ext***ing higher up the sole. Sportier, and ready for adventure, the CT Clog has greater flexibility, grip, and durability than the original. The upper remains a single-buckle, brutalist-inspired shape made from thick, oiled nubuck leather. Leather Uppers Leather Insole Cork-Latex Footbed Polyurethane (PU) Sole Made in Germany Style Code: 1029568