I own 4 pairs of Yori and Yuna Fly London shoes, all size 6 which fit comfortably and if anything are a bit big and more like a size 6 and a half. I ordered the Yuna model in a size 6 thinking that Fly's sizes would be the same across styles but alas, I had to send them back as the shoes were far too small. Not only did they feel very narrow at the front, I don't have particularly wide feet, but also I struggled to get them on as they were too short, almost like a size smaller. The style of the shoe was lovely as was the colour,but I was disappointed that the sizing and fit was inconsistent with other styles. I am not sure if size 7 would be far too big, and interestingly in some colours size 7 is considerably dearer than the same shoe and shade in a size 6, which makes me question if indeed this is related to the fact that wearers of a size 6, always the first to sell out, are buying size 7 instead in this particular style, to compensate for the strange sizing, hence pushing the price up.