Birkenstock Oswego Sandcastle Canvas Slip-On Loafer EU 41 W10-10.5 M8-8.5 Excellent pre owned condition Meet the BIRKENSTOCK Oswego. The perfect casual slip-on shoe. With a flexible rubber sole and extra padding, stay comfortable all day long. Take these sporty shoes anywhere and everywhere. The upper is made from smooth canvas and soft suede. Removable, anatomically shaped cork-latex footbed Upper: canvas, suede Footbed lining: suede Sole: natural rubber Made in Portugal