I'm 5'3, 125 lbs. I ordered a size 5 to begin with, they were too big around the waist, but pretty tight starting at the lower part of my thigh. I exchanged for a size 3 and I love everything about them, except for the fact that right above where the slit starts on the thighs, it begins to get too tight (and I don't have large thighs). It's more than an annoyance than anything. It's not enough for me to return them because they're super cute and that's not easy to find in Bermuda shorts, but I don't think that I'll be ordering any more.