These are a very comfortable shoe! I have fallen arches and a bad back but these make things easier. They are surprisingly light for the way they look. Very bouncy in the step. I read that Nike runs about a size small and I find that to be true. I am a 12 but I got a very comfortable size 13. That is not really a fault as I see it we just need to do our homework and things should work out. I would recommend this shoe to anyone really. They seem pretty well made too. I am planning another purchase as soon as I can manage. Love the red by the way!.