From Marc Nolan, the Solana Men's Cow Print Backstrap Clogs feature: Cowhide upper Adjustable strap Calfskin leather lining latex Memory foam padded insole Rubber outsole Imported. Styling 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.