Question 1

Is a 28G the same in every brand?

Accepted Answer

No - a 28G isn't identical across brands, because brands use different sizing systems and cup depths. Here's how a standard US 28G translates in the brands we track: ThirdLove 28G, Wacoal 28G, Panache 28F, Bravissimo 28F, Freya 28F, Elomi 28F, Glamorise 28G, b.tempt'd 28G, Fantasie 28F. SHEFIT, Kindred Bravely, ENELL size by their own chart instead of band/cup.

Question 2

What are the sister sizes for 28G?

Accepted Answer

28G's sister sizes — same cup volume, different band — are 30F. Try a sister size if the band feels too tight or loose but the cup still fits.

28G Bras

Your 28G across brands

Endurance Wired Sports Bra - Dusty Rose

Endurance Wired Sports Bra - Berry/Chalk

Endurance Wired Sports Bra - Sienna Rose

The Shoulder Ease Bra - Steel Blue

Millie Luxe Non-Wired Bra - Black

Niya Smoothing Bra - Smokey Green

Millie Luxe Bra - Black

Ultimate Comfort Plunge Bra - Black

Millie Luxe Bra - White

Niya Smoothing Bra - Beige

Niya Smoothing Bra - White

Millie Post Surgery Bra - Black

Niya Smoothing Bra - Black

Una Bra - Forest Green

Ultimate Comfort Plunge Bra - Beige

Millie Luxe Bra - Burgundy

Niya Smoothing Bra - Mocha

Coco Bra - Navy

Nellie Bra - Black

Millie Luxe Bra - Amber

Millie Luxe Bra - Forest Green

Millie Post Surgery Bra - Ivory

Endurance Wired Sports Bra - Black/Latte

Millie Nursing Bra - Black

Ultimate Back Smoothing Bra - Beige

Move 360 Sports Bra - Chocolate Brown

Move 360 Sports Bra - Teal

Isabella Balcony Swimsuit - Polka Dot Print

Brand	How it runs	Your 28G →
ThirdLove	cups run generous	28G
Wacoal	true to size	28G
Panache	true to size	28F
Bravissimo	true to size	28F