Is a 42M the same in every brand?

No — a 42M isn't identical across brands, because brands use different sizing systems and cup depths. Here's how a standard US 42M translates in the brands we track: ThirdLove 42M, Wacoal 42M, Panache 42J, Freya 42J, Elomi 42J, Glamorise 42M, SHEFIT 42M, b.tempt'd 42M, Kindred Bravely 42M, ENELL 42M, Fantasie 42J.

What are the sister sizes for 42M?

42M's sister sizes — same cup volume, different band — are 40N and 44L. Try a sister size if the band feels too tight or loose but the cup still fits.

42M Bras

86 bras tracked in 42M · 2 brands · See all M cup

Brands: Elomi, Panache

Your 42M across brands

A 42M isn’t the same in every brand. Here’s how a standard US 42M translates across the brands we track — and how each one runs.

Brand	How it runs	Your 42M →
ThirdLove	cups run generous	42M
Wacoal	true to size	42M
Panache	true to size	42J
Freya	band runs small	42J
Elomi	cups run generous	42J
Glamorise	true to size	42M
SHEFIT	true to size	42M
b.tempt'd	true to size	42M
Kindred Bravely	true to size	42M
ENELL	true to size	42M
Fantasie	true to size	42J

Translate across all 30+ brands →

Editorial buying guide

Read the 42M buying guide

Top picks, sister sizes, and how to spot a good 42M fit.

Read →

Sister sizes

40N 44L What are sister sizes?

Sort

Your 42M across brands

Tango Balcony Bra - Nutmeg

Tango Balcony Bra - Navy

Harmony Plunge Bra - Hot Pink

Tango Essence Balcony Bra - Cherry Red

Esme Balcony Bra - Ziggy

Esme Balcony Bra - Wildflower

Esme Balcony Bra - Wonderland

Bliss Full Cup Bra - Lilac

Estel Full Cup Bra - Royal Blue

Estel Plunge Bra - Royal Blue

Estel Plunge Bra - Blush Pink

Jaida Plunge Bra - Scarlet

Estel Full Cup Bra - Sage

Estel Plunge Bra - Rose Gold

Josephine Full Cup Bra - Magenta/Latte

Josephine Full Cup Bra - Cobalt/Latte

Natalia Full Cup Bra - Bordeaux Red

Andorra Full Cup Bra - Pearl

Andorra Full Cup Bra - Black

Illuminate Full Cup Bra - Dark Green

Upbeat Wired Sports Bra - Blue

Anya Spot Balcony Tankini Top - Black/White

Anya Spot Balcony Tankini Top - Navy/Ivory

Eden Balcony Bra - Black

Ashley Padded Balcony Bra - Black

Eden Balcony Bra - Pink

Bliss Full Cup Bra - Rose Print

Sophia Plunge Bra - Red

Ella Plunge Bra - Black Sequin

Josephine Full Cup Bra - Forest Green

Estel Full Cup Bra - Cherry Red

Activate Wired Sports Bra - Black/Chalk

Paloma Balcony Swimsuit - Navy Gingham

Tango Essence Balcony Bra - Honey

Tango Essence Balcony Bra - Black

Dream Full Cup Bra - Navy

Tango Edit Balcony Bra - White

Cate Allure Full Cup Banded Bra: Deep Emerald

Cate Full Cup Banded Bra: White

Cate Full Cup Banded Bra: Latte

Cate Full Cup Banded Bra: Hazel

Cate Full Cup Banded Bra: Black

Cate Allure Full Cup Banded Bra: Sahara

Cate Allure Full Cup Banded Bra: Black

Tango Balcony Bra - Honey

Tango Balcony Bra - Blush

Tango Balcony Bra - Black

Dream Full Cup Bra - Pistachio

Lucie Stretch Plunge Bra: Midnight

Morgan Stretch Banded Bra: Dark Romance

Lucie Stretch Plunge Bra: Wildcat

Lucie Stretch Plunge Bra: White

Lucie Stretch Plunge Bra: Pale Blush

Lucie Stretch Plunge Bra: Mocha

Lucie Stretch Plunge Bra: Black

Morgan Stretch Banded Bra: Sahara

Morgan Stretch Banded Bra: Black

Morgan Stretch Banded Bra: Hot House

Molly Nursing Bra: Cameo Rose

Molly Nursing Bra: Black

Zarla Stretch Banded Bra: Rose Bud

Roxie Plunge Bra - Misty Rose

Liberty Plunge Bra - Black

Roxie Plunge Bra - Black

Sophia Plunge Bra - Dusky Blue

Liberty Plunge Bra - Mocha

Bliss Full Cup Bra - Hazel

Bliss Full Cup Bra - Noir

Bliss Full Cup Bra - Rose Pink

Esme Balcony Bra - Mocha Animal

Esme Balcony Bra - Black Animal

Amara Full Cup Bra - Honey

Amara Full Cup Bra - Black

Entice Full Cup Bra - Red

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