I've worn Nike's forever for running and figured I'd try these out due to the way I run. They are designed for people that run with a slight sideways land as I do. Within three weeks they started to fall apart and I would hear "clicking in the soles which is an obvious air pocket, and that drives me crazy when I'm walking.  As far as a running shoe, I loved them. They were  light and airy and I felt like I fatigued less as a result. But again, shoddy shoes. I have old Nike's that are years and years old and they just won't go away - that's how well they were built. I'll be going back to Nike again for this reason.