These are adorable and are well constructed. I bought a 6.5 because that's the size I normally wear. They are a tad snug and have given me a couple of blisters. I think they need some wearing in, which is okay... Most shoes are like that. I wouldn't recommend buying a size up, it would probably not fit. Although you may want to skip it altogether if you have wide feet, it seems like a snug fit even for my narrow feet.