I ran in the prior version and decided to give the new update a try.... everything I loved about the last version, but a little lighter (which feels good) without sacrificing any support. I wear orthodics and they fit great in these (I order a half size bigger than my true size so they fit). My orthodics work better in these than the prior version... the last version seemed to have the insoles glued in a little, so when I would slip my orthodics in and out they would kind of get stuck for the first couple of months until the glue wore off. The toe box was maybe a little more narrow than the last version, but I just laced the bottom a little differently (skipped crossing over the first set of ties) and that made it feel perfect. Can't beat the cool colors, they look slick but not overly flashy, in my opinion.  Really no break in period, I felt great right away.