A casual-wear staple, perfect year-round. Featuring a simple, adjustable design and contoured cork footbed that forms to the shape of the foot, the Boston is a timeless favorite. This classic model comes in a cozy version with genuine shearling lining the footbed and the upper for added warmth and comfort. Birkenstock: Footwear innovators who have been at the forefront of blending comfort and a unique sense of individuality since 1774.