I purchased these Zella capris to update my workout look. So nice! Please note that the Live-in capris are knee length rather than hallway between a knee and ankle length. I am 5'4" tall. They stay put at the waist and at the leg bottoms. They wash well, I've seen no pilling. My size fluctuates between a 6 and an 8 and medium works well and is forgiving. I bought these for my daughter. She is 5'6" and a size 2 and although the chart says that is an XS, I bought her a Small and it works.
Overall, these are great exercise pants. I found on these in Medium the waist-band rolled a little - a problem I didn't have in the same version of this pant in the cross-dye. I'm wondering if it's just this pair or something. Not bad, not enough to really be noticeable or return them. Other than that they fit well, and look great without being too tight.
I love the Zella leggings! I have three pairs and wear them ALL the time around the house, to work and for working out. They are thick without being too warm and they hold up well. However, these capris are too short. I like my capris to hit mid calf and these are too high, they hit right below the knee. I just get the full length leggings and get them hemmed.