I think Reebok runs small in general, but I think this shoe runs true to size relative to my previous Reebok shoes. I love this shoe! I have a high arch and need the cushion, which this shoe definitely has. I love the way the shoe moves with me. I also have wide feet, and these were a little tight at first, but loosened up after a couple of hours of wear. I can tell that this shoe is going to last me a long time because of the material the top is made from ... it's sturdier than previous shoes I have had, yet is still very breathable and very light! I got the grey/pink/green/white, and think I'm going to replace the green shoelaces with pink .... there's almost too much green going on at the same time in the same vicinity. All in all, great shoe! I'm definitely happy with my purchase!