Love love love these leggings. I had bought zella leggings in the past and when I decided it was time for a new pair of crop leggings it was no question what brand I was going to get. The quality is great, the material doesn't pill like some other legging brands, and they don't stretch out after repeated wear. If you want a quality pair of leggings for yoga or just wearing around, these are it! I'm usually between an xs and small, and I get the small but I wouldn't say they run big, just true to size.
A couple of friends have recommended the Zella leggings to me but I was skeptical since I have my favorite brand of "go-to" yoga gear. After trying these I have to say I was impressed. I like my yoga pants to be a bit thicker and these are a mid weight that is comfortable and flattering. I've worn them to yoga, paddleboarding, and barre so far and am in love!