This is really a nice pair of stylish yet comfortable sandal. My shoe size runs from 5 to 5 1/2 depending on the brand, style and model. For this pair of sandals, I should have sized up to a 6 because the 5 1/2 was a tad bit too small. It really is hard to gauge shoes especially since they are seen online. I believe that shoes really have to be tried on in order to gauge the best fit and comfort for the occasion and need. Too bad I had to return this one. I would have wanted to keep it had I ordered a size 6 instead.