But this specific model of dc's will kill your feet after you wear them a while.  After I'd had them for work for a few months, the shoe bent in such a way that the toe on the outside part of the shoe was bending in and crushing my toes.  Not cool.  I think that's why this particular model of DC is so cheap.  Spend the money for the better models, or throw them away and get new ones after a couple of months.