Comfortable nipple concealers give you an ultra smooth appearance. Make nipples invisible under dresses but also lift breasts as perky as you want for Natural Upper Cleavage and Fuller Looking Breasts. Designed to feel like a natural addition to your body. Invisible: Seamless to the outlines of your bust. Back of the product is slightly concave to help create a more comfortable fit. Will hide very well if worn under backless and strapless dresses, swimwear & gown.