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, bebe Backless Maxi Dress Nordstromrack Fashion Hacks for Backless Dress: Small Chest Approved Tips My fave Fashion Tricks to Wearing Backless and Strapless Bra Tips on How to Wear a Backless Dress Daves Fashions How to Wear a Bra with Open Back Dress Sisters Guide to Style