I made a little mistake on my size - maybe I trusted someone's review? Not sure what the deal is at this point. But shoes are great and I bought a size smaller (bit snug but not enough to raise H) I just wear them for a gym workout. I would never run in them - unless you get the right size! duh.
-- and did not return them promptly - and got busy so I am keeping them.
However I would go with my exact US size (next round) (wish they had half sizes in this and so many other things) I don't have anything bad to say.
Cute shoe and made WELL- Speedo is a great company with quality made items. THAT is my reason for the purchase.