Thought I'd write a review to help others with sizing as the reviews helped me when I was trying to select the correct size. I'm huge Fan of FlipFLops, have 3 pairs of thongs that I wore all summer and was excited to see options for cold weather. I went hog wild and ordered the Gosh Clogs, the Ultra Lounge clogs, the super toningankle and the super toniong tall boots because they were all on sale. My normal shoe size is 6 1/2 , but I wear 6's in FlipFops thongs, and found that the FF ultra lounge slippers, and FF super toning ankle and tall boots  were also a perfect fit in 6's. I ordered the 7's in the Gogh clogs due to the reviews and was right to do as the heel ended at the perfect place in the back of the clog in a 7. However, there was a ton of room at the front of the shoe, probably a good inch and a half of empty space above the toe. IF I could advance my foot into the clog, I'd probably still wear a 6 in these too but the top of the clog is so tight that my foot can't advance to fill the toe space which seems huge, so you do need to size up in order for the heel not to hang over. I was disappointed in the style, it's not as cute as the picture or the other styles and is not flattering at all. The toe is too boxy and square, looks like a square shoe almost. The cougar color was also not as nice as it looks in the picture, very drab and more grey than looking than tinged with olive as it appears in the photo. It was not very comfortable either. I never thought I'd find a Fit Flop I didn't like, but I had to return these.