I grabbed these when I realized I was about to miss out on this colourway. My size seems to be sold out everywhere, so I decided to buy these which are a half size larger than I would normally have purchased. I'm a solid 10 in most brands, but usually size up by at least half a size in Fluevogs. I have the turquoise Guides in an 11, and was looking for that size again, but no luck.  With these at 11.5 my heel was lifting out of the back a little, so I've put a gel half sole under the ball of my foot, and now they're fitting well, with the bonus of a little extra wiggle room for my toes! The Prepare family are all a little narrow in the toe, and I'm not, so this is a good thing. These also have a significant platform, so the heel is not nearly as high as it looks making these shoes much more wearable than any other high heel I've owned.  I love these shoes, and they made it to Canada in less than 24 hours. Very happy.