I've tried Hue, Danskin, Gap, Athleta, Hardtail, etc etc. These are the best and they are so inexpensive given the quality. I just went on Amazon and bought a few more pairs. I've had this pair for many many months and I wear them to yoga, to the gym, to bed, and with regular clothes. They are stretchy and OPAQUE and never lose their shape. They also don't pill.

The only concern is that the supplex fabric itself is stiffer; I think that's just the way this fabric is compared to cotton. Nonetheless, all the super soft cotton leggings I've had always start sagging at the knees. So I prefer these leggings since I don't mind a little stiffness--feels like it's holding in your tummy better ;).

ALSO, I would recommend ordering up if you're borderline. I am 5'7'', 130 lbs, 26.5 inch waist. Usually I'm a small/size 4. I definitely fit into a small in these leggings but it's more comfortable in Medium.