These sneakers are extremely comfortable. They do fit true to size, however.....I would suggest if you have a meaty foot do not buy these sneakers since the toe box is very shallow. I wore Asics Cumulus previously which have a generous toe box. My feet and calves did hurt a little bit when I switched to these since these have a lower heel-toe drop. My feet have gotten used to them now so they are fine. They are more stable than Nike Free, which have a much less supportive outsole. So if you are looking for something as comfortable as the Nike Free with a little bit more stability this is your shoe.