Vivaia Pointed-Toe Knot Sandals (Yaffa) Color: Ruby Red Size 40= US 9 (please see size guide in last photo) The Yaffa Sandal is designed with a classic mule silhouette, a flattering pointed toe and bold dynamic bow design at the front. A subtle 30mm height heel adds femininity without leaving your feet feeling tired, making these stylish flats perfect for travel, date nights and more. Pointed toe mules Knit upper made from plastic bottles Deodorizing insole Anti-slip rubber outsole