From Marc Nolan, the Men's Montana Woven Leather Moc Toe Derby Oxfords feature:  Calf leather woven upper Full calf leather lining Memory Foam insole Rubber lug outsole All pairs include a suede dust bag Imported.  Sizing 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. Select your true size if you prefer a wider width or up if you wear a half size