The BIRKENSTOCK Rio is a sporty, elegant sandal with an ankle strap that offers reliable and comfortable grip even during boisterous activities. This version features a creative paisley print. The color-coordinated details round off the shoes look of sophistication. This popular sandal has been given an update in a new material, with a vegan version now available. It is entirely free of animal products, as verified by independent testing laboratories. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor.