I'm usually a 6.5 or 7 depending on the cut of a shoe. Because the reviews said they ran small, I ordered the 7. They are still TINY. I can't believe how tight they are. I don't think I own any 7.5s, but I'd go with them in this style. Just know these will absolutely not work for anyone with wide feet. The toe box is so small and tight.

I will say they are cute and for $20 I'm willing to give them a shot and see if they will stretch out at all--I absolutely never remember to return or exchange items anyway.