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Silk longline bra - Black Heart Lingerie

Silk longline bra

The Sculpting Longline

$158 USD

Lightly padded cups for natural lift and shape

Convertible straps for double-strap or caged styling

95% silk with stretch for all day comfort

Black Heart’s signature gold-plated hardware

Size: 32B

Find Your Fit

Size Guide

How to measure

Use a soft tape measure.

Bras (Longline and Push-Up): snug under your bust for the band. At the fullest point of your bust for the cup. Subtract your underbust from your bust. The difference is your cup. A 2-inch difference is a B. 3 inches is a C, 4 inches a D, 5 inches a DD.

Between sizes

The silk is built to move with the body. When the table doesn't give a clear answer, size up.

Bras · Longline

Our Longline Bras are designed with extended support, a contoured silhouette, and slightly more flexibility through the band than our Push-Up styles.

From Brennah, on fit.

“My underbust is 28 inches, my bust is 33 inches, and I wear a 32DD in our Silk Longline Bra. I designed this piece with extended support and a contoured silhouette, so the fit holds, smooths, and moves with the body through every size we offer.”

Measure your underbust. Around your ribcage, directly beneath your bust.

Measure your bust. Around the fullest part while wearing a non-padded bra.

Find your size

Band

Underbust	BHL Band
27-29"	32
30-31"	34
32-33"	36

Cup

Difference	Cup
2"	B
3"	C
4"	D
5"	DD

Supportive, sculpted fit with light flexibility through the band. For a firmer fit, choose your recommended size. For a relaxed fit, size up in the band. Real silk with a touch of stretch. It moves with the body and holds its shape.

Not sure? Size up.

Color: Black

Black

Free exchanges within 15 days

Discreet delivery

Complete the Set

Receive 10% OFF

Strappy silk thong - Black Heart Lingerie

Black

Strappy silk thong

$98 USD

Full body view of luxury black garter belt showing fit and proportions

Black

Silk garter belt

$128 USD

Back seamed stockings - Black Heart Lingerie

Black

Back seamed stockings

$28 USD

Total Price:

$371~~$412~~

DESCRIPTION

A strikingly versatile silhouette, the Eclipse Convertible Longline Bra blends everyday luxury with nighttime allure. Designed with a low-cut balconette shape and a fully adjustable, multiway strap system, it transitions seamlessly from classic support to a daring caged look. Crafted from silk with stretch and fully silk-lined, it offers a smooth, sculpted fit with lightly padded cups for a natural, effortless lift. Finished with Black Heart’s signature gold-plated hardware, every detail is a study in refinement.

FABRIC & FEATURES

• 95% silk, 5% elastane
• Fully silk-lined
• Convertible multiway straps
• Black Heart’s signature gold-plated hardware
• Longline silhouette for support and smoothing

SIZING

We recommend selecting your usual bra size for the best fit. For additional guidance, please refer to our size guide.

CARE

Hand wash cold and lay flat to dry to preserve the silk and hardware. Designed for longevity with proper care.

PACKAGING

Presented in Black Heart’s signature packaging, designed for a refined unboxing experience.

SHIPPING & RETURNS

Free standard shipping on orders over $200 within US.

Click here for more information and International shipping.

For more information on returns, click here.

Complete the Look

Black

Strappy silk thong

An elevated expression of sensuality.

$98 USD

Strappy high-waist silk panty - Black Heart Lingerie

Black

Strappy high-waist silk panty

A statement, seen or unseen.

$128 USD

Black

Silk garter belt

Black silk garter with dual styling

$128 USD

Black

Silk push-up bra

The Defined Push-Up

$148 USD

Black

Back seamed stockings

Silky sheers with classic backseam

$28 USD

Ruched silk thong - Black Heart Lingerie

Black

Ruched silk thong

An essential, from day to night.

$68 USD

Silk triangle bra - Black Heart Lingerie

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Silk triangle bra

The Effortless Triangle

$118 USD

Shop the Silk Collection

"I created Black Heart to celebrate duality; your strength and your sensuality. Each piece is designed to make you feel unstoppable, yet undeniably feminine."

Hugs... Brennah

Our Story

We were tired of lingerie that looked sexy but felt unwearable. So we created Black Heart Lingerie: luxury silk lingerie that blends seduction with comfort, empowering women to feel confident in their own skin.

Learn more