Don't take the sizing advice
I wear a 7-1/2 and based on the sizing advice, ordered a 7. It fits but not comfortably as I would expect a Crocs clog to fit. I would have ordered an 8, as per my usual, except for the skewed advice on the page on the website stating to order a size down if wearing a half size. IGNORE THAT ADVICE. I did not feel like packaging them up and sending them back, so am ordering another pair for the cool weather.