I actually got some the other
I actually got some the other day! They are super-flexible, so as jschwab said, width doesn't seem to be an issue.
I haven't worn them yet and am not even sure if I'm going to keep them. They don't fit that well. I wear 7-7 1/2 and got the size 7-8s. They stick out a bit from the back of my heel--the elastic at the ankle pushes the foot forward into the shoe. I guess I could exchange for the next smaller size, but it might be too small.
Since the foot is pushed forward, my toes make the toe of the shoe misshapen (VERY thin vinyl-ish stuff), and that's kind of ugly. In fact, the toe of the shoe was sort of bent and weird when I got it, and I had to put wooden spoons in them shoes to reshape the toes! That seemed to work.
They are comfy and VERY minimalist, which is awesome. They just don't look that good when I'm wearing them. I'm holding off; I may decide the comfort and price point ($10 at Wal-Mart) is worth it, but I'm just not sure. I'm also thinking I may just try to make something similar to them....