Although my daughter thought the idea of these were weird, I felt confident that it would work, just like it did back in the 80's! ha!
It fit as expected- no need to worry about bellies or bottoms sneaking out.  It also meets school requirements as far as neckline, and so is a great solution for wearing under  a lightweight sweater in moderate Central California.  The racerback design also means that nothing is slipping off her shoulders.  She has the black and heather gray colors.