I'm a US size 8 for reference my foot measurements are length 9.5 inches, with 3.5 inches, because I have wider feet I usually size up by half and that usually works for me on this site. The heels are 4 inches perfect, the back strap fits comfortably but will probably be loose if you have narrow feet and the sequins are beautiful. They seem to be comfortable but don't have a lot of padding so not sure for how long I'll be able to keep them on during use, but to be on the safe side I will be adding a slip control pad because for some reason FN heels are slippery on the foot bed which causes my weight to slide my foot forward into the toe strap or pointed area and thus by causing pain especially in a shoe that already has a tight fit. Let's hope that this will be one of the points that the designers will take note of. Women love shoes and a comfortable shoe gets the best reviews and will then become top sellers. 👌 just saying 😏 as for this white shoe, it's cute and the price is low so it's worth it for at least that. True to size.