Birkenstock's signature slip-on clog, the Boston, speaks for itself. It's simple yet adjustable, casual and durable. This shoe is a perfect year a round clog. It has a deep heel cup to ensure proper weight distribution and foot alignment, a spacious toe box that gives your toes room to move, and an anatomically shaped cork footbed that molds and adapts to your foot's unique shape. The classic footbed provides pronounced arch support.