I ordered up 1/2 size, which was a mistake.  Have to return.  I might have been able to fit in full size smaller than normal for me.  Cute shoe, and fairly lightweight, however the other significant problem for me was the ankle strap and heel were scratchy, and very high up on my ankle.  I would have to line them with moleskin to wear.  Based on that inconvenience and discomfort, I will not reorder in the proper size.