The BIRKENSTOCK Rio is a sporty, elegant sandal with an ankle strap that offers a reliable and comfortable grip – even during boisterous activities. 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 skin-friendly microfiber. Here, the sophisticated play with the material gives the classic model a new look which could almost be mistaken for real leather