I'm 5'2, 47 kg I got an xxs.
Does not roll down
Fits very slimming, wore it all day on a 20° C weather, very comfy
Need to get more colours. The pockets though are very convenient but since they are tight, doesn't look good with a phone :(
Rated 0 on a scale of minus 2 to 2, where minus 2 is Small, 0 is True to size and 2 is Large
Rated 5 out of 5