Great grip and good heel support. Only issue is that it rubbed me near the heel whilst walking (not running), despite it being my size. However a pair of insoles did the trick and now I can use them effectively. I believe the issue arose because these shoes assume your feet point perfectly straight when you walk. My left foot points slightly out (not much, just a remnant from football) and that caused the rubbing. So if yours aren't perfectly forward pointing when you walk, insoles might help if it rubs.