"I purchased this pair twice, size 6.5 was too big and size 6, though it fits in length and width, would not stay on. I think the sides are too "short" if that makes sense; the sides are not tall enough to keep my feet contained. Each time I walk, my feet slip out :( The shoes seem really comfortable but I won't be able to wear them at work if my feet keep coming out of them.
I say if you're looking for a pair of work shoes, this may work depending on your feet. But for me, unfortunately, this will be a return."