I have owned several pair of Ryka water shoes and have been happy with them, so I thought this shoe would be the same fit and quality.  Not so.  This shoe runs REALLY small; had to return the first pair.  I take an 8 and it was so small I reordered a 9, which is still a little tight.  Also, these shoes don't breathe at all.  Wouldn't recommend.  Overall, they are pretty uncomfortable.