From Marc Nolan, the Men's Solana Brown Woven Leather Backstrap Clogs feature:  Woven calfskin leather upper Slip-on construction Adjustable strap Calfskin leather lining Memory Foam padded insole Rubber outsole All pairs include a suede dust bag Imported.  Size & Fit 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. Select your true size if you prefer a wider width or up if you wear a half size.