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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Your 38J across brands

Charley Stretch Plunge Bra: Fawn

Charley Stretch Plunge Bra: Black

Charley Stretch Plunge Bra: Ballet Pink

Charley Plunge Bra: Jet

Sachi Plunge Bra: Cafe Au Lait

Sachi Plunge Bra: Black

Morgan Stretch Banded Bra: Dark Romance

Reja Plunge Bra: Black

Nerina Stretch Plunge Bra: Rouge

Zarla Stretch Banded Bra: Sapphire

Namrah Bandless Plunge Bra: Pale Blush

Kintai Plunge Bra: Black

Nina Balcony Bra - Black Leopard

Faith Moulded Plunge Bra - Latte

Faith Moulded Plunge Bra - Noir

Nina Balcony Bra - Mocha

Retro Chic Full Figure Underwire Bra: Toast

Florence Bra - Black

Millie Bra - Deep Red

Millie Bra - Deep Green

Daisy Bra - Green Floral

Millie Bloom Bra - Red/Pink

Esmae Bra - Forest Green

Millie Bloom Bra - White

Millie Bra - Hazelnut

Esi Bra - Purple Multi

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: Mist

Lucie Stretch Plunge Bra: Black

Morgan Stretch Banded Bra: White

Morgan Stretch Banded Bra: Sahara

Morgan Stretch Banded Bra: Midnight

Morgan Stretch Banded Bra: Haute Red

Morgan Stretch Banded Bra: Black

Morgan Stretch Banded Bra: Toasted Almond

Morgan Stretch Banded Bra: Hot House

Morgan Stretch Banded Bra: Ebony

Morgan Stretch Banded Bra: Cameo Rose

Tiernie Stretch Plunge Bra: Sahara

Nerina Stretch Plunge Bra: Sahara

Nerina Stretch Plunge Bra: Black

Serene Full Cup Bra - Noir

Florence Balcony Bikini Top - Polka Dot Print

Visual Effects Minimizer Bra: Sand

Visual Effects Minimizer Bra: Black

Perfect Primer Full Figure Underwire Bra: Black

Perfect Primer Full Figure Underwire Bra: Sand

Belle Full Cup Bra (J - N Cup): White

Belle Full Cup Bra (J - N Cup): Natural Beige

Belle Full Cup Bra (J - N Cup): Black

Aura Molded Bra: Natural Beige

Aura Molded Bra: Black

Cesile Side Support Bra: Peach Sorbet

Cesile Side Support Bra: Black

Molly Nursing Bra: Cameo Rose

Matilda Plunge Bra: White

Matilda Plunge Bra: Sunset