This style has adhesive on the bottom half of the inside cup (bottom half only so that it does not hurt the nipple when you take off the bra) to give it an extra hold. The side wings are there to give extra shape and support. If it is not sticking, you should make sure your skin is clean and dry (no deodorant, lotion, make-up, etc). Any of these items would make the adhesive not stick properly.
Teri from Hampton, Va, United States