"While everything is pretty good about this boot, I had trouble deciding between a 7.5 and an 8 because while the 7.5 was great in length, it was a little tight on the calf and on the width of the foot. The 8 had a lot wider calf and was great in the width, but it is really loose at the ankle.
If you decide to order, get two different sizes. I am usually a 7.5, but this time I stuck with the 8."