Is a 38A the same in every brand?

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

What are the sister sizes for 38A?

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

38A Bras

What is a 38A in other brands?

59 bras tracked in 38A · 1 brand · See all A cup

Brands: ThirdLove

Your 38A across brands

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

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

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

Sister sizes

36B 40AA What are sister sizes?

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Your 38A across brands

Fairy Push Up Bra: Limewire

Fairy Push Up Bra: Jungle-Bling

Fairy Push Up Bra: Bubblegum

All Day Lace T-Shirt Bra: Charcoal

Zero Edge™ Wireless Push-Up Bra: Black-Leopard

Zero Edge™ Strapless Bustier Bra: Leopard

24/7® Classic Strapless Bra: Taupe

24/7® Classic Second Skin Unlined Bra: Taupe

24/7® Classic Second Skin Unlined Bra: Black

24/7® Classic T-Shirt Bra: Siren

All Day Lace Push-Up Bra: Dreamy-Lilac

Zero Edge™ Push-Up Bra: Taupe

Zero Edge™ Push-Up Bra: Black

Zero Edge™ Push-Up Bra: Leopard

24/7® Classic Strapless Bra: Black

24/7® Classic Second Skin Unlined Bra: Rose-Dust

24/7® Classic Second Skin Unlined Bra: Mocha

Zero Edge™ Wireless Push-Up Bra: Taupe

Zero Edge™ Wireless Push-Up Bra: Black

Organic Cloud Cotton Perfect Coverage Bra: Rose-Dust

24/7® Classic Uplift Plunge Bra: Rose-Dust

24/7® Classic Uplift Plunge Bra: Mocha

24/7® Classic Strapless Push-Up Bra: Taupe

Organic Cloud Cotton T-Shirt Bra: Black

Zero Edge™ Wireless Push-Up Bra: Leopard

24/7® Classic Uplift Plunge Bra: Taupe

24/7® Classic Uplift Plunge Bra: Black

Organic Cloud Cotton Perfect Coverage Bra: Black

All Day Lace Push-Up Bra: Ruby

All Day Lace Push-Up Bra: Black

24/7® Classic T-Shirt Bra: Soft-Pink

24/7® Classic T-Shirt Bra: Sienna

24/7® Classic T-Shirt Bra: Mocha

24/7® Classic T-Shirt Bra: Espresso

24/7® Classic T-Shirt Bra: Black

24/7® Classic T-Shirt Bra: Taupe

Thermoregulating TempSync™ T-Shirt Bra: Air

Zero Edge™ Contour Bra: Taupe

Zero Edge™ Contour Bra: Leopard

Zero Edge™ Contour Bra: Black

Rose Lace Unlined Demi Bra: Red

ComfortStretch Front Close T-Shirt Bra: Black

ComfortStretch Smoothing Full Coverage Bra: Black

ComfortStretch Back Smoothing T-Shirt Bra: Taupe

ComfortStretch Back Smoothing T-Shirt Bra: Black

All Day Lace T-Shirt Bra: Black

Thermoregulating TempSync™ T-Shirt Bra: Mocha

Thermoregulating TempSync™ T-Shirt Bra: Macaron

ComfortStretch Back Smoothing T-Shirt Bra: Petal

ComfortStretch Smoothing Full Coverage Bra: Petal

All Day Lace Uplift Plunge Bra: Black

All Day Lace T-Shirt Bra: Taupe

ComfortStretch Smoothing Full Coverage Bra: Taupe

Thermoregulating TempSync™ T-Shirt Bra: Taupe

Thermoregulating TempSync™ T-Shirt Bra: Black

ComfortStretch Front Close T-Shirt Bra: Taupe

ComfortStretch Smoothing Full Coverage Bra: Dreamy-Lilac

All Day Lace Uplift Plunge Bra: Sea-Salt

Rose Lace Unlined Demi Bra: Sea-Salt