The Birkenstock Women's Sydney Birko-Flor Sandals - Regular proves that fashion and functionality can go hand in hand. With its two simple straps, it's a real hit with women who want both high fashion and comfort. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor® with a silky sheen while the color-coordinated outsole and the buckles round off the shoe's look of sophistication.