These shoes are very lightweight with great support. I run 3 or 4 times a week in these and they are super comfortable. I read the previous reviews about the shoes being narrow. That actually works for me, because my feet are slightly narrower than medium, but not narrow enough for narrow width shoes. They fit perfectly. However, I imagine that if your feet are wide you would find these shoes too tight. And if your feet are medium, you might want to consider getting a half-size larger.