Is a 40D the same in every brand?

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

What are the sister sizes for 40D?

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

40D Bras

What is a 40D in other brands?

588 bras tracked in 40D · 9 brands · See all D cup

Brands: Bravissimo, Elomi, Fantasie, Freya, Glamorise, Panache, ThirdLove, Wacoal, b.tempt'd

Your 40D across brands

A 40D isn’t the same in every brand. Here’s how a standard US 40D translates across the brands we track — and how each one runs.

Brand	How it runs	Your 40D →
ThirdLove	cups run generous	40D
Wacoal	true to size	40D
Panache	true to size	40D
Freya	band runs small	40D

What is a 40D in other brands? See all 30+ brands →

Sister sizes

38DD 42C What are sister sizes?

Sort

Your 40D across brands

Visual Effects Minimizer Bra: Roebuck

Visual Effects Minimizer Bra: Black

Elevated Allure Front Close Underwire Bra: Black

Elevated Allure Front Close Underwire Bra: Roebuck

Full Bloom Underwire Bra: Black

Full Bloom Underwire Bra: Rose Dust

Full Bloom Underwire Bra: Belgian Block

Inside Job™ Underwire Bra: Black

Inside Job™ Underwire Bra: Lavender Sage

Inside Job™ Underwire Bra: Sand

Inside Job™ Underwire Bra: Roebuck

Elevated Allure Underwire Bra: Rose Dust

Elevated Allure Underwire Bra: Bungee Cord

Back Appeal® Underwire Bra: Black

Back Appeal® Underwire Bra: Rose Dust

Back Appeal® Underwire Bra: Cappuccino

Back Appeal® Underwire Bra: Praline

Perfect Primer Full Figure Underwire Bra: White

Perfect Primer Full Figure Underwire Bra: Black

Perfect Primer Full Figure Underwire Bra: Sand

Perfect Primer Full Figure Underwire Bra: Roebuck

Perfect Primer Full Figure Underwire Bra: Belgian Block

Go Anywear T-Shirt Bra: Black

Go Anywear T-Shirt Bra: Roebuck

Vivid Attraction T-Shirt Bra: Black

Vivid Attraction T-Shirt Bra: Woodrose

Vivid Attraction T-Shirt Bra: Dark Purple

Back Appeal® Underwire Bra: Soft Sky

Belle Balcony Bra: White

Belle Balcony Bra: Natural Beige

Belle Balcony Bra: Black

Aura Molded Bra: Natural Beige

Aura Molded Bra: Black

Cesile Side Support Bra: Black

Demure Molded Non Padded Bra: Natural Beige

Demure Molded Non Padded Bra: Black

Emmaline Side Support Bra: Natural Beige

Emmaline Side Support Bra: Midnight

Emmaline Side Support Bra: Blossom

Energise Sports Bra: Navy Geo

Energise Sports Bra: White

Energise Sports Bra: Nude

Energise Sports Bra: Navy

Energise Sports Bra: Black

Serene Full Cup Bra - Vintage

Niya Smoothing Bra - Forest Green

Taking Sides T-Shirt Bra: Black

Taking Sides T-Shirt Bra: Roebuck

Taking Sides T-Shirt Bra: Belgian Block

Back Appeal® T-Shirt Bra: Dark Slate

Back Appeal® Wire Free T-Shirt Bra: Black

Back Appeal® Wire Free T-Shirt Bra: Rose Dust

Shape Revelation® Pendulous Underwire Bra: Praline

Confidence Boost™ Underwire Bra: Black

Confidence Boost™ Underwire Bra: Roebuck

Confidence Boost™ Underwire Bra: Dark Slate

Visual Effects Strapless Minimizer Bra: Black

Visual Effects Strapless Minimizer Bra: Sand

Back Appeal® Front Close T-Shirt Bra: Black

Back Appeal® Front Close T-Shirt Bra: Rose Dust