From Marc Nolan, the Men's Alexander Leather Ballerina Longwing Sneakers feature: Calfskin leather upper Lace up closure Calfskin leather lining Latex memory foam padded insole Rubber outsoles Imported. Styling Notes: Size 6 to 9 run large, go a full size down. If you wear a half size, size down. Size 10 to 12 run true to size. Size 13 to 16 run small. If you wear a half size, size up All Marc Nolan shoes are standard D width.