LOVE my running shoes. I only run about 3 or so miles at a time but for what I use them for...they are great. Light weight, they don't untie easily- I love the color and style. I have small feet and I never buy shoes online because I'm always afraid they'll be too big. I generally wear a 6...sometimes a 5.5 (which I normally do in running shoes) but I purchased a 6 and it fits great.. I don't know if I'd say they run small....I think they're pretty spot on.