"These run on the smaller size. Depending on the maker i wear either an 8 or 8.5. An 8.5 just fits in this shoe. I wore them for the first time yesterday and they are very comfortable. They fit just right in the toe box and the cushion feels extra thick. I use these for Zumba other cardio classes and I appreciate the extra cushion. I have ordered a second pair already to make sure I have some for when these wear out."