Backless dress + heavier chest? This is what actually works. Even when I was a XXL, I wore breast tape , and I still use it now. It's the most supportive option, the secret to having a big bust and going braless Inspiralized No matter your bust size, you can wear a backless dress with the right sticky bra. @welovenood makes some of my favorite sticky bras that will work for all your strappy dresses, plunging necklines, Best Boob Tape for Backless Dresses: Tips & Tutorials Amazon.com: Neeno Women's Dresses Elegant Contrast Lace Cut Out Front Halter Neck Backless Dress Dress for Women(Large) : Clothing, Shoes & Jewelry Amber Lace Halter Dress (Black) Laura's Boutique, Inc