(Edited 4/28/18) I returned the first pair I got and bought one size smaller. That did the trick! These are my new favorite sandals. There was no break-in time when I got the correct size (slightly smaller than I usually wear). No rubbing, blisters, discomfort. They are so comfortable and I can wear them for hours on end without any issue. I love them!

(original review) I wanted to love these since they had been recommended and reviewed so highly but one of the straps rubbed one part of my left foot enough that after an hour or two I ended up with a raw spot every time I wore it. I tried wearing them 4 or 5 times for more than an hour each time and the same thing happened in the same place each time. They are really cute and the foot bed is very comfortable. If the straps didn't rub, I could see these being my favorite summer sandals. Unfortunately, I had to return them since they ended up being really uncomfortable where the strap rubbed. My feet are a narrow 9.5 and I ordered a 10, so maybe there was just too much room between the straps and my feet? I'm contemplating ordering a 9 (since they don't have half sizes) to see if that will make the difference. I think it's really a matter of finding the exactly right size.