I just got a pair of these boots yesterday! I found at the store the leather was quite stiff and the sales man said this was a common observation (read complaint) about Sorel boots. He assured me that they do soften up over time. I wore them around the house to break them in a bit and after a few hours I felt some friction just above my heel, though it wasn't enough to leave any actual blisters and it feels fine today. I wouldn't suggest trying to drive in these until the leather has softened. I attempted to last night and the range of motion in my ankle was seriously limited - hitting the brakes wasn't so much of an issue it was the accelerating. I do love these boots as they incredibly cute and super warm. I'm happy with my purchase but I can't wait till the soften up a bit!! Hopefully we get some more snow in the near future!