Question 1

Is a 40DDD the same in every brand?

Accepted Answer

No - a 40DDD isn't identical across brands, because brands use different sizing systems and cup depths. Here's how a standard US 40DDD translates in the brands we track: ThirdLove 40DDD, Wacoal 40DDD, Panache 40E, Bravissimo 40E, Freya 40E, Elomi 40E, Glamorise 40DDD, b.tempt'd 40DDD, Fantasie 40E. SHEFIT, Kindred Bravely, ENELL size by their own chart instead of band/cup.

Question 2

What are the sister sizes for 40DDD?

Accepted Answer

40DDD's sister sizes — same cup volume, different band — are 38F and 42DD. Try a sister size if the band feels too tight or loose but the cup still fits.

40DDD Bras

Your 40DDD across brands

Endurance Wired Sports Bra - Black

Power Wired Sports Bra - Latte

Endurance Wired Sports Bra - Dusty Rose

Entice Full Cup Bra - Red

Endurance Wired Sports Bra - Berry/Chalk

Endurance Wired Sports Bra - Sienna Rose

Magdalena Spacer Molded Bra: Vintage Green

Magdalena Spacer Molded Bra: Noir

Magdalena Spacer Molded Bra: Natural Beige

Muse Plunge Bra - Cameo Rose

Muse Plunge Bra - Black

Sophia Full Cup Bra - Teal Blue

Sophia Full Cup Bra - Sienna Rose

Sophia Full Cup Bra - Black

Portia Side Support Bra: Red

Endurance Wired Sports Bra - Black/Latte

Dana Balcony Strapless Bra - Linen

Dana Balcony Strapless Bra - Black

Dana Strapless Balcony Bra - Caramel

Estel Full Cup Bra - Honey

Estel Full Cup Bra - Noir

Estel Full Cup Bra - Navy

Dana Balcony Strapless Bra - Hazel

Iris Balcony Tankini Top - Red Gingham

Iris Balcony Tankini Top - Black Gingham

Selena Plunge Tankini Top - Cobalt

Paloma Balcony Swimsuit - Red Gingham

Paloma Balcony Swimsuit - Black Gingham

Rita Plunge Swimsuit - Black

Rita Plunge Swimsuit - Cobalt

Rita Plunge Swimsuit - Red

Brand	How it runs	Your 40DDD →
ThirdLove	cups run generous	40DDD
Wacoal	true to size	40DDD
Panache	true to size	40E
Bravissimo	true to size	40E