Toss in the wash with cold water. Air dry. Boom.
The Square Mary Jane
"I purchased these shoes on sale nonreturnable in a 7. 5. Love the style and color, however, I had purchased Rothy's in a similar style earlier this year in the same size which fit. I had tried a 7 in my earlier purchase and returned for a 7. 5 thinking that would work on this particular purchase as well. The Square Mary Jane shoe is way to big. Now I'm stuck with a shoe that I would love to wear but it's too big and I can't return for a smaller size."