From Marc Nolan, the Men's Aiden Croco Embossed Leather Boots feature: Croco embossed leather upper Eight eyelet lace up Calfskin leather lining Latex memory foam padded insole Rubber soles Imported. Styling Notes: 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.