lesamourai, Nike is still pretty narrow. I don't recommend the Zoom Flyknits for serious running, but I've heard the new Flyknit Ones have resolved most issues people had with the Trainers/Racers. Though I still think you should go to a shop or have someone more experienced watch you walk and run. I'm not that big on running or anything, but I pesonally recommend that people try out some sort of minimal footwear, if not add it to their rotation, to help build proper form. If you can run properly, you'll probably be fine in any thing that fits and won't need to worry so much about needing footwear that compensates for poor form or bad habits. Also I got wide feet and I can wear thick dri-fit socks with both my Free Runs and Flyknit Trainers in the same size with the former being just a bit narrower.