I have bought 6 or 7 pair of the Sketcher Go Walks. Sadly, with the Go Walk 3, the size has become even more unpredictable than it was with the 2's. With the original Go Walks (no number) I bought 4 pair, all the same size and all fit the same. With the 2's, I bought 2 pair before one fit. These were just was too big, but not to the same degree on both feet. I was afraid to just order a smaller size.