I ordered these in an 8.5, which is my usual size, and found them to be true to size.

I thought these were cute, but ended up returning them because the shoe is a very soft leather, and I prefer shoes with more structure.

If you're looking for a delicate leather slipper, this may be for you.  They have a 'split' sole, making it possible to flex and point your foot with the shoe on (which might make these great for dancing) but for daily wear, these seemed a bit flimsy.