I love these - I foget I have anything on my feet when I wear them! Reading the reviews, I wasn't at all sure what size to pick. I did, in the end, decide to size up one size because a) one of my feet swells and is therefore quite high volume and b) I wanted to be able to wear toe socks in them. So, could I have gone for my regular size? Yes I think I could have, and certainly the size chart would allow for my measurements (weirdly, though, Freet widths on the charts are never wide enough for my feet, but in reality on wearing them they are more than spacious!). However, I'm actually very comfortable in the bigger size. I do have around 1cm more in length at the front of my big toe, but I have a longer second toe so it works well, and I don't feel I'm going to trip with the extra space. The shape of the shoe works perfectly with my feet. I have no issues in the fit across the top of my feet, plenty of room for my swollen foot and plenty of adjustment for my regular foot. Would this have been the same in my regular sizing, I don't know as I haven't had them side by side to compare. Reasonably easy to slip in to (push your foot right in, then pull the back up is the way that works best for me... easier than five finger shoes) I love my big toe having its own space, as it helps my bunions. They do look slightly whacky - I have some 5 fingers shoes so, not as whacky as those but certainly unusual, but my small people tolerate me wearing these better (apparently toe socks and toe shoes are weird?!) Things do get stuck inbetween big toe and rest of the shoe, but it's ok. Super light. Grip is decent. Lovely barefoot feel. Dry out nice and quickly.