You can't go wrong with Aston Marc's boat shoes. Their minimalist profile is accented with classic penny slots and finished with round moc toes. Lose the socks and style yours with slim-fit denim or fine tailoring. Synthetic upper Round moc toe Slip-on Penny slots Lining: Synthetic Padded insole Rubber sole Imported SIZE True to size. Center Core - M Core Shoes > Saks Off 5th. ASTON MARC. Color: Navy. Size: 12.