As you can tell from my photo, the shoes are a lot more vibrant than advertised. Didn't bother me, but something you might want to consider before purchasing. I bought these in the medium width since they were the only ones available in my size and I was a little concerned about the fit, because I have pretty wide feet. But these are really comfortable. I don't find the toe box constricting at all. I'm usually a 6.5 in regular shoes, but my general rule of thumb for running shoes is to go up half a size. I purchased a pair of ASICS in 6.5 a few days ago just to test the fit and found my big toe hit the top of the toe box ever so slightly, which I personally don't like. I know some people prefer their shoes a little more snug than others. I haven't really had a chance to break these in yet, but one thing I could see becoming a problem is the back of the shoe rubbing up against my ankle. Unlike my old Nike free runs, these shoes are pretty high and the material in the back of the shoe is fairly rigid. My friend who owns a pair of ASICS has said she's gotten really bad blisters from running in them and I can see what she's talking about. She says wearing high socks helps though.