The Birkenstock Arizona Birkibuc Narrow Fit Sandals are a classic combination of style and comfort. Their Birkibuc synthetic leather upper creates a leather-like finish, and the contoured cork-latex footbed provides a custom fit. The sandals also feature a deep heel cup that cradles the heel, longitudinal arch support for stability, and transverse arch support for proper alignment. There is also a raised toe bar that encourages natural gripping motion, and a roomy toe box for better balance and alignment.