From Marc Nolan, the Men's Adler Mixed Leather Lug Penny Loafers feature: Mixed calf leather and patent leather upper Full calf leather lining Memory Foam padded insole Rubber lug outsoles Standard D width 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