I have just started really running this summer. I had done some running here and there and used the Reebok Fuel Techno which I loved. (since retired and wear every now and then out). I decided after much researchto ppurchase these. Which I'm glad I did. I listened to others and went a half size up. Glad I did that as well. These shoes are comfortable and have never given me a blister. And they are cute! Great job, Reebok. These are worth every penny!