Exchange with online Nashbar and Performance, while time consuming, isn't that hard. I ordered three sets of shoes last time and ended up keeping them all, even though one pair ran large--perfect for winter with wool socks.

That said, if the shoe is just a little wide, consider wool/smart wool socks to help with the fit. I've worn wool socks for years summer and winter...keep your feet dry and no noticeable "too hot" discomfort that I've ever experienced, even in summer months in the desert. Good luck.