From Marc Nolan, the Men's Del Mar Pebble Leather Loafer Mules feature: Pebble calfskin upper Slip-on construction Plush shearling lining Memory foam padded insole Rubber outsole All pairs include a suede dust bag Imported. Styling Notes: Size 6 to 11 run large, go a full size down. Size 12 to 16 run true to size. If you wear a half size, size down. All Marc Nolan shoes are standard D width.