This is my second pair in a row of this model of Nike, and one of my favorite distance running shoes I've ever had. I run long distances (half and full marathons) and these are the right amount of support without being too firm, and are very cushiony and comfortable. I've never had a single issues with these shoes - no blisters, no shin splints, no knee or calf pain -- they're pretty darn perfect, except for one small thing: the grooves in the bottom of the shoe catch more pebbles than most sneakers, so you have to stop every now and the to clean it out. It annoyed me quite a bit at first but the shoes feel so good on runs that I learned to live with it. Small price to pay for the benefits and comfort of these sneaks.