Crafted for style and innovation in collaboration with Boston Orthotics & Prosthetics, the BILLY Footwear BILLY Goat Sneakers could be the most functional pair of shoes you own. The AFO-friendly sneakers are designed with a polyester upper, mesh lining for breathability, and removable inserts. The short-wrap zipper closure on the upper makes it easy to wear or remove the shoes. Round toe shape. Slip-on style. Synthetic rubber outsole.