These are amazing. The fit is great, and the details are insane. For sizing, our best recommendation is this:
Example: If you wear a size 7 in Kancans comfortably, get your true size. If you're inbetween sizes, go up one. If you can squeeze into a 7 but it has to have a lot of stretch, then size up one. These have a medium level of stretch, so you're able to get your true size if you don't need lots and lots of stretch.