Fitflop shoes are very hard to buy, because you can never get the same fit with any of their shoes.  I love the feel of fitflop shoes.  The ankle boot seems to run larger than the clogs.  I am keeping the boots, but will have to wear with thicker socks. They still move up when walking, but I hope that will not bother me.  I'm sure going down in size would make them too small.  I wish they carried these shoes in stores, so you could try each shoe on before buying.  Amazon has great prices and service.