Question 1

Is a 40L the same in every brand?

Accepted Answer

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

Question 2

What are the sister sizes for 40L?

Accepted Answer

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

40L Bras

Your 40L across brands

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

Apollo Sports Bra - Black

Inspire High Impact Sports Crop - Black

Apollo Sports Bra - Burgundy

Apollo Sports Bra - Leopard Print

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 40L →
ThirdLove	cups run generous	40L
Wacoal	true to size	40L
Panache	true to size	40HH
Bravissimo	true to size	40HH