JBU by Jambu Buttercup Mary Jane Flats Womens Size 11 M Gray Comfort Shoes The JBU by Jambu Buttercup Mary Jane Flats in Gray are comfortable shoes perfect for casual or travel occasions. These Mary Jane style flats feature a round toe shape, adjustable hook & loop closure, and a flat heel. Made with a PU faux suede upper and rubber outsole, these shoes provide support and durability. The fabric lining and insole ensure added comfort, while the straps add a stylish accent. Ideal for summer, fall, and spring, these Mary Jane flats are a practical and fashionable choice for women looking for both style and comfort.