backless
That dress with a plunging back is downright sexy. Imagine a gown that is all covered in front but where the back is totally backless. That would definitely turn heads.

Strapless and Backless Wing bra
Padded and underwired, the Strapless and Backless Wing bra from The Natural offers great shaping and support. The clear side sections gently adhere to the skin using double sided sticky pads for a backless option and are ideal for bridalwear or gowns.
Fashion Forms Nu Bra Ultralite Backless Bra
Adhesive bra (strapless, backless).
Sassybax Very Bare Backless Bra
Seamless, underwire bra.
Fashion Forms Nu Bra Ultralite Backless Bra
Backless adhesive bra.
For such outfits, you need a backless bra. Sure you could go braless and let your boobs go south. The smarter way is to get a bra that is made specially for outfits like these.

Strapless and Backless Wing bra
Padded and underwired, the Strapless and Backless Wing bra from The Natural offers great shaping and support. The clear side sections gently adhere to the skin using double sided sticky pads for a backless option and are ideal for bridalwear or gowns.
Sassybax Very Bare Backless Bra
Seamless, underwire bra.
Fashion Forms Nu Bra Ultralite Backless Bra
Adhesive bra (strapless, backless).
Fashion Forms Nu Bra Ultralite Backless Bra
Backless adhesive bra.
Look your most gorgeous in that backless outfit by wearing one of these backless bras beneath it.