Some had posted that these were hard to put on, so I took a leap of faith and kind of shoved my foot in each. They were a little tight (narrow) and stiff at first at the ankles. I wore them around the house for about 2 hours, the next time I wore them on a weekend trip, which included 2 days in row of standing on concrete for 7 or so hours.  No blisters (I did wear good socks) and my feet were not aching when I took them off for the night. I had brought backup shoes that I ended up not needing.  Since then, still loving them, very comfortable, and no problems taking them off. As far as fit, I went to the Ariat website, measured my foot with a tape measure and then choose a size. In cowboy boots, I'm usually a 7.5, in normal shoes an 8, and if they are narrow or have weird toes, a 8.5.  And in some running shoes from the running store a 9 for some reason. These felt at first like they were going to be too narrow, but have felt great. I do not have narrow feet.