I'm a big fan of Nike's Free models, I think they are the most cofortable sneakers in the market. I just tried and loved their new Flyknit model. It fits snugly on your foot, like a sock. The fabric is very light and cool. The perfect summer sneakers!
My last two pairs of running shoes weren't wide. My feet would always stretch out the shoes. These shoes, however, fit perfectly. This was a good purchase.