I have been wearing the pure flow since last spring. Prior to that I had been out with PF for about a year and tried many shoes and nearly every insert on the market per doctors and PTs. I tried the connects and then the flow and decided on them. I have currently been wearing a size 13. It is quite snug especially in the toe box and even in the midfoot area I had decided on the 13 since there is no 13.5. I ran in this all last year on mostly trail events. I did 3 marathons and 2 - 50ks in them with minor soreness afterward. Now that winter is here I have been running quite a bit more pavement. I did back to back 12 mile training runs on pavement and got sore on the outside edge of both of my feet (more intense on the right side) From just before the bone on the outside in front of heel. Up towards the front of the foot. My guess is because the shoe is so snug when I am running on flat pavement there is full compression and my feet are wanting to bust out of the shoes on the sides. I did a 50K last weekend on all pavement and have been sore for a few days. I am thinking of getting and trying a run in a size 14 to see if that helps. I really love the flow shoes .... anyone have any other recommendations on brands or styles that might run a bit on the wider side but still are similar in feel to the pure?