Is a 38J the same in every brand?

No - a 38J isn't identical across brands, because brands use different sizing systems and cup depths. Here's how a standard US 38J translates in the brands we track: ThirdLove 38J, Wacoal 38J, Panache 38GG, Freya 38GG, Elomi 38GG, Glamorise 38J, b.tempt'd 38J, Fantasie 38GG. SHEFIT, Kindred Bravely, ENELL size by their own chart instead of band/cup.

What are the sister sizes for 38J?

38J's sister sizes — same cup volume, different band — are 36K and 40I. Try a sister size if the band feels too tight or loose but the cup still fits.

38J Bras

What is a 38J in other brands?

528 bras tracked in 38J · 7 brands · See all J cup

Brands: Bravissimo, Elomi, Fantasie, Freya, Glamorise, Panache, Wacoal

Your 38J across brands

A 38J isn’t the same in every brand. Here’s how a standard US 38J translates across the brands we track — and how each one runs.

Brand	How it runs	Your 38J →
ThirdLove	cups run generous	38J
Wacoal	true to size	38J
Panache	true to size	38GG
Freya	band runs small	38GG

What is a 38J in other brands? See all 30+ brands →

Editorial buying guide

Read the 38J buying guide

Top picks, sister sizes, and how to spot a good 38J fit.

Read →

Sister sizes

36K 40I What are sister sizes?

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Panache

Envy Full Cup Bra - Honey

$78.00

Panache

Alice Balcony Strapless Bra - Honey

$78.00

Your 38J across brands

Envy Full Cup Bra - Honey

Alice Balcony Strapless Bra - Honey

Alice Balcony Strapless Bra - Black

Esi Bra - Navy Floral

Charley Bralette: Black

Charley Bralette: Ballet Pink

Smooth Molded Strapless Bra: Sahara

Smooth Molded Strapless Bra: Black

365 Moulded T Shirt Bra - Black

365 Moulded T Shirt Bra - Honey

365 Moulded T Shirt Bra - Lipstick

365 Moulded Plunge Bra - Honey

Anya Riva Spot Balcony Tankini Top - Navy/Vanilla

Katherine Nursing Bra - Black

Boundless Non Wired Sports Bra - Black

Boundless Non Wired Sports Bra - Berry/Chalk

Allure Spacer T Shirt Bra - Black

Charley Bandless Spacer Molded Bra: Fawn

Charley Bandless Spacer Molded Bra: Black

Nerina Spacer Molded Bra: Sahara

Nerina Spacer Molded Bra: Dusty Rose

Nerina Spacer Molded Bra: Black

Lacey Bra - Black

Niya Bra - White

Nursing Sleep Bra - Navy

Niya Bra - Champagne

Clara Full Cup Bra - Chai

Allure Full Cup Bra - Ivory

Allure Full Cup Bra - Black/Latte

Bliss Full Cup Bra - Hazel

Bliss Full Cup Bra - Noir

Clara Full Cup Bra - Charc/Black

Clara Full Cup Bra - Honey

Allure Full Cup Bra - Azure Blue

Bliss Full Cup Bra - Rose Pink

Allure Full Cup Bra - True Red

Allure Full Cup Bra - Honey

Esmae Bra - Ivory

Millie Bra - Cocoa

Millie Bra - Mint

Millie Bra - Ivory

Esmae Bra - Blue/Lilac

Satine Bra - Champagne

Ultimate Comfort Bra - Burgundy

Ultimate Smoothing Balconette Bra - Blush

Esmae Floral Plunge Bra - Pink

Millie Bra - Black

Millie Bra - Bright Blue

Esmae Bra - White

Amelia Flourish Bra - Blue Multi

Millie Bra - Neon Coral

Amelia Floral Bra - Multi

Millie Bra - Ivory

Esmae Bra - Black

Millie Floral Bra - Sage Green

Millie Bra - Purple

Millie Bra - Caramel

Ultimate Comfort Bra - Dusky Blue

Ultimate Comfort Bra - Black

Millie Bra - Neon Pink