From Marc Nolan, the Men's Calum Croco Embossed Leather Penny Loafers feature: Croco embossed leather upper Slip on construction Calfskin leather lining Latex Memory Foam padded insole Leather and rubber outsole 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 Standard D width