The basic Wanted flats are decent design for cheap flats, but their price should reflect the standard of quality and design. These are not 40 dollar shoes!  More like 10 or 15.  The little button and the elastic band at the back of the shoe digs in and chafes after about 15 minutes of wear, and they are concrete-flat, so need very good insole cushioning to be added (which costs consumers another 15 on top of the cost of the shoe).  The sizing:  way too small.  I wear a true 6 and a half, but needed 7 and a half in these. :(