From Marc Nolan, the Men's Calum Penny Loafers feature:  Calf Leather Upper Slip-on construction Full Calf Leather Lining Memory Foam Insole Rubber Soles with Rubber Traction Grips All pairs include a suede dust bag Imported.  Size & Fit Size 6 to 11 run large, go a full size down. If you wear a half size, 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. Select your true size if you prefer a wider width or up if you wear a half size.