Over the past month, I've ordered multiple pairs of "leather" leggings in the hopes of finding one I can live with.  The brands I've tried are: Yummie, Nordstrom brand, Spanx, and Lysse (specifically, Bryce, High-Waist, and High-Rise, which are all different Lysse styles.)  Out of all of them the Spanx were the best, because they were the least plastic-y, the least noisy, and the best at shaping/smoothing.  The Lysse styles were the noisiest, due to the type of highly plastic-y material, and although some reviewers felt that it resembled genuine leather, I personally felt that the Lysse material looked too shiny and smooth to convincingly pass as real leather, and therefore highlighted how "not-real" they are.

The High-Waist Leggings were problematic for me, because I thought the front and back leg seams would be slimming and flattering, but in reality, the back seams in particular rippled and puckered even when standing still, creating more bulges where they don't need to be.

The High-Rise Leggings (confusingly named) were also problematic, because they have horizontal knee seams, which creates knee bulges if you have any kind of "fluff" to your body.

On the bright side, the pleather fabric is actually very flexible and stretchy, so you can expect the comfort level to be high.  But keep in mind that this is very noisy fabric, and every time you move or take a step, it swishes against itself loudly.

I sent mine back immediately---I suppose they might work okay for someone who is very bony, but they didn't work for me.