These were only available in a half-size down from my usual size, but they were still a bit too big. The platform is quite narrow, so they are more difficult to balance on than a chunky shoe should be.
I ordered a size 7 and I'm usually a 6 1/2 to 7 but these were tight so I recommend going up at least a half size. Also they look a lot taller in person than the picture and that might be due to my shoes size being smaller than the models. I haven't decided if I will keep or return. They are good quality and cute. Just too tall for my personal preference.