I am not a runner by choice, but the military does what it can to make me one. Having liked Asics shoes in the past, and after reading the positive reviews, I chose this shoe because it was relatively inexpensive. Since I knew my size, I purchased this via Amazon and did not try it on until I received it. As always, it fit wonderfully, but I was astonished at how light the shoe was to wear. I didn't really buy in to the idea that light shoes could make a difference, but I am happy to say that I was very wrong. A wonderful value for the cost!