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. Its the most supportive option, keeps everything lifted, and feels Amazon.com: The Perk Up: Adhesive Breast Lift Tape Clear Waterproof Boob Tape, Invisible Push Up Bra Alternative for Backless Dress & Low Cut Outfits, Strapless Wire Free Support (2 Pairs) : Best Boob Tape for Backless Dresses: Tips & Tutorials Sticky Bra Adhesive Bra Strapless Sticky Invisible Push Up Silicone Bra For Backless Dress With Nipple Covers Nude black Boob Tape Pasties Bra Walmart.ca How to Tape Your Boobs for a Backless Dress: Lift & Support