Usually, I wear Athleta or lululemon leggings. I absolutely love these - I can wear them for days without washing! They don't sag in the butt or knees. I'm 5'3" 140 and a small fits great (I think an XS would have been fine too). Woolx says wear these as base layer only, not as pants - I always wear them as pants. In the midwest winters, I have worn them under pants if I'm walking outside for more than 10 minutes. I have black, so they go with everything. They have no tummy control (which is very comfortable, nothing constricting you in these pants), so your bloat will be evident. I always wear with a shirt or sweater that covers my stomach because I'm self-conscious about it. I got these in black. I did try another pant in a dark green (don't remember which) - I didn't like them as much because they were very tight around the stomach and waist and uncomfortable. After having these avery pants for over a year, they still look great. I will be buying another as we go into autumn because they're so great!