I ordered this item in a XL after reading the reviews.  It pushed all of my butt to the middle of the lifter.  I have hips/thighs and I needed some lift, as my backside isn't a 'bootylicious' as I feel it should be.  This made it EXTRA plump, but not realistic looking.  You could also see the bands under my jeggings.  I think that you need to have a very firm backside for this to even work.  I ended up returning the lifter and will stick with my padded panties.