Without realizing it, I guess I've exclusively been buying the "high waisted" legging options and apparently they are made COMPLETELY DIFFERENTLY. If you're gonna buy leggings here, read the descriptions carefully. I didn't realize that there were different types. These are sooo much looser, to the point that they feel like they're sliding down and even a little baggy in some places, but simultaneously the seams sound like they're breaking every time I put them on or take them off. Almost like the seams weren't sewn in right. The waist doesn't feel like it will stay up at all. It rolls down and just makes me feel gross, even though that isn't normally an issue for me. I ordered the same exact size that I order for all of the others (Small), and they all fit me flawlessly. No sagging, no tearing sounds. Like a glove. This fabric also seems like it's thinner. That may not actually be the case, since this is the first white pair I've purchased, but be prepared for a lot more transparency with these. I wrestled with just returning them, because there is no way that I'll wear these alone as leggings, but I LOVE the print so much I'm just gonna wear them under skirts or something and try to ignore the way they make my stomach feel. I'm still prepared to be unrolling them and pulling them up all the time though.
I'm not sure what to choose for the fit option to best help you guys. I don't want to tell you they run large and then have all the seams bust with the fabric actually fitting, and I don't want to tell you that they run small and have them be loose and sag everywhere and roll down, but not feel like they're gonna rip apart. The sizing and manufacture of these is just off. Wish I could be more help.
They are great!