Size: 39, This product stands out for its sustainability, as it uses soft linings and microsuede made from recycled bottles, along with other materials such as synthetic leather, fabric, or microfiber also made from recycled plastic bottles. In addition, it offers unparalleled comfort with a slip-on fit, padded collar, and two elastic panels, along with a insole technology that provides anatomical cushioning, comfort, and support. The lightweight and flexible construction ensures that these products move with you in a comfortable and versatile way.