By Jenisha Jonchhe Researched and tested where possible Updated
Affiliate links: this guide links to Amazon UK. As an Amazon Associate, My Bra Size earns from qualifying purchases. It never changes the advice or the size we suggest.
What to search for on Amazon UK
Add your UK size to the search on Amazon (for example “34G”). Not sure of it? Use our bra size calculator first.
- 1
Moulded plunge T-shirt bra
Smooth, lightly padded cups with a low centre: invisible under fitted V-necks and the easiest plunge to wear every day.
- 2
Plunge bra for fuller cups (DD+)
Fuller-bust plunge styles use deeper cups and side support so the low centre does not mean spilling out at the sides.
- 3
Unpadded lace plunge
Lace cups follow your natural shape, with a pretty neckline that suits wrap dresses.
- 4
Deep plunge for very low necklines
An extra-low centre for necklines that end near the top of the ribcage.
As an Amazon Associate, My Bra Size earns from qualifying purchases. Links open Amazon UK; prices and stock are set by Amazon and its sellers. Search results change often, so a product appearing there has not necessarily been tested. Product photos, where shown, come from Amazon. How we handle affiliate links
A plunge bra is a bra with a low, narrow centre front and cups cut at an angle, forming a deep V. It hides under V-necks, wrap dresses and low-cut tops, and brings your breasts closer together.
Who does a plunge bra suit?
Plunge bras suit most bust sizes, from A cups to fuller-bust ranges. They often work well if:
- your breasts sit close together, or you want them to look closer together;
- you wear a lot of V-necks and wrap styles;
- you find full-cup bras show above your neckline.
If your breasts are wide set or fuller at the bottom, a balconette bra may fit you better. Our page on types of bras compares every style.
Plunge, balconette or T-shirt bra?
A plunge dips in the centre. A balconette has a straight, horizontal top edge and wider-set straps. A T-shirt bra is about smooth, seamless cups, and can be a plunge or a full cup. Many everyday bras combine two: a moulded plunge is both a plunge and a T-shirt bra.
How should a plunge bra fit?
Buy your usual UK size; if you are not sure of it, our bra size calculator gives a starting size. Then check:
- The centre gore sits flat against your breastbone. If it lifts away, the cups are probably too small.
- The cup edges lie flat against your breasts with no gaping and no ridge where tissue spills over.
- The wires sit behind your breast tissue at the sides.
- The band stays level and firm on the loosest hook.
The bra fitting guide explains each check, and the fit checker works through problems like gaping cups.
Brands to search for
Freya, Panache and Curvy Kate all make plunge bras in fuller-bust sizes, and most high street brands make moulded plunges from A cups upwards. Our brand size guides explain how each UK brand labels its sizes.
Questions people ask
What is a plunge bra?
Is a plunge bra good for big busts?
What is the difference between a plunge and a push-up bra?
Why do my plunge bra cups gape?
Written by
Jenisha Jonchhe
Jenisha Jonchhe is a New York-based fashion writer and designer with academic training in fashion design. She writes research-led bra sizing and fit guides for UK shoppers.
Researched from brand and retailer size guides, and tested hands-on where possible. Search results on Amazon change often, so a product appearing there has not necessarily been tested. How we research and test
