Women's white sneakers

Dr.Scholls now time white sneakers. Women's size 12. Absolutely nothing wrong with them, just not a great fit for my foot. Only worn once! Sneakers in great condition, other than the bottoms of the shoes; absolutely no damage or wear on the tread of the sneakers, but they must have been worn over new blacktop or something because they are marked up black. The discoloration is the only indication that these aren't brand new sneakers. Could probably be scrubbed off with a good wash.