When I had fusion surgery on my back, the surgeon cut some of the muscles right below my waist.  This led to there being a bump on my back like people get who have "muffin top" on their sides.  I have tried MANY products to mask this.  I actually bought this product simply because I needed a nice camisole, and I liked the reviews that said it slimmed them down and didn't ride up.  Well, it did that and MORE!  For the first time in ten years that muscle is TAMED, and I look like a NORMAL person from the back/side.  This Amazon seller, HerRoom, was also great.  Free shipping on orders over $25, and excellent packaging and customer service (don't worry, I needed the service on a different product!)  I really can't say enough good things about this product.  It truly works for me for my problem areas.  I have also lost 120 lbs, and this thing covers over a multitude of sins (and skin).  AND, as other reviewers have said, it does NOT ride up!  It's a little pricey, but worth it.  I am not well endowed, so I can't really address the comfort in the chest area. It does tend to flatten a bit, but not much, really.