Running

The stores I buy from have pretty open return policies if the shoes don't work. Fleet Feet, for example, has like sixty days or something? I ran about fifty miles in a pair from them before I had to admit that they were too tight. They accepted them back and refunded me in full, and when I asked what happens to the pair of shoes, they told me it just gets donated.

This is all a long way of saying that if you can find a shop with a generous return policy then you can expect that their to priority will be to get you in a shoe that works. (Of course this might just be an option in USA.)