I bought these from a local retailer (which I feel I need to do, once in a while).  They are very good at assesing what I need based on what I do.  Which is run on concrete and flat trails to get to trails that are both flat and hilly.  I run on the flat and walk up the rocky trails.  these are great all around shoe for me, I don't slip going down the trails like I used to.  My luggage was stolen with these in it, so I repurchased the exact same shoe on Amazon and still love them.  Wear almost every day.