What is a Plunge Bra?
A plunge bra has a deeply cut centre that allows it to sit invisibly under V-necks and plunging dresses, while side panels and underwire provide lift.
Who is a Plunge Bra Best For?
This style works best for V-necks, deep necklines. Recommended size range: A–G.
How to Make Sure Your Plunge Bra Fits
- Centre gore should not show in your top
- Cups should still cover breast tissue completely
- Best with projected breast shapes
How to Size a Plunge Bra
Use your everyday bra band and cup measurement as the starting point. Use your true measured size unless the brand sizing guide says otherwise.
Best Bras of This Type
- Wacoal — premium fit, runs true to size.
- ThirdLove — half-cup sizes for in-between fits.
- Panache / Freya — full-bust D–K options.
- Aerie / Lively — comfortable, affordable everyday fits.
Common Issues with Plunge Bras
- Band too loose — sister-size down for tighter support.
- Cup gap at top — sister-size up or try a fuller-cup version.
- Straps slip — adjust shorter or use a racerback converter.
- Band rolls — fabric is too thin or sized too big.