These were my first pair of Tory Burch flats I ever purchased. Not knowing which size to get, I got the 6, and had to return for the 5.5. As much as people say these run small, I found sizing down half a size made them a little bit more comfortable. After having ordered a pair of the Caroline flats, I do not think I'd ever buy another pair of the Reva's. They're cute, but that's about it. Unless I'm sitting all day at my desk for work, I can't wear these.
I bought these a couple months ago and they need a couple days to break them in. When they are broken in though, they are soo comfortable and I can walk 7 hours in them!