Say hello to the perfect duo for every neckline and every mood. The Perfect Boost Duo brings you the best of both worlds with our Maxi and Demi Boost Inserts—designed to give you lift, shape, and seamless confidence no matter what you wear. Whether you're reaching for a deep plunge, a strappy top, or a classic scoop neckline, this bundle has you covered (literally!). Why You'll Love It: Double-sided adhesive for secure stay & no slipping Maxi Boost Inserts offers versatile coverage and a flattering lift for plunging styles. Demi Boost Inserts gives a natural volume boost that perfectly complements sweetheart and curved necklines. Waterproof and Sweatproof Invisible under clothes – no lines, no bulk Reusable - 30+ wears *Note: Our products are best worn with tight-fitting clothing. The tighter your top, the better push up effect!