I have a semi-wide foot with a high arch and it can be tricky to find a shoe that I can get my foot into, much less one that I can wear comfortably without some breaking in.  Jellypop shoes are an exception to this rule and this boot is particularly wonderful--It fits very nicely and leaves me room for my toes to move without becoming squished by mid-day.  I generally wear an 8 in Jellypop shoes but reviews on another site prompted me to order a half size larger.  I likely WOULD have fit into my regular Jellypop size, but I'm glad I ordered up.  I actually un-flapped mine and they stand up just fine (I didn't want the bulkiness right at my ankles), and they don't really LOOK like I unflapped them. I'm planning on ordering a spare pair (did I mention how much I love this boot?) and maybe getting another color as well.  They ARE lacking a bit in padding, but this is why I'm glad I ordered up as I have room to add a bit of cushion should I ever need to.  I highly recommend this awesome boot.