I had a pair of the first edition of merrell trail glove and ran in them for about 3 years before my wife finally through them out due to the hole in the sole and the overwhelming smell. I have tried to replace them with another set of Merrell's which I think the overall quality of their products has went down the drain, a pair of brooks minimalist shoes which I hated. These Nike free 4.0 fly knit's are hands down the most comfortable shoe I have placed on my foot and have been a dream to run in so far. I am not a distance runner, usually 1.5 to a max of 5 miles so I can't speak on the distance side of the house. I have never been a fan of Nike running shoes until now. I was also determined to stay away from a shoe that had a lot of mesh like this one, but the mesh on this is different than most. It seems extremely durable. I have only had them for 2 weeks so far, but loving them. I might buy a second pair just in case I can't find them when these wear out. I wish I would have done that with the trail gloves.