Silk triangle bra - Black Heart Lingerie

ECLIPSE

Silk Triangle Bra

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The Everyday Triangle

$118

95% Silk · Fully Silk-Lined

Soft Triangle Cups

Convertible · Two Ways to Wear

Signature Gold-Plated Hardware

Size:

Find Your Fit

The Black Heart Fit Guide

How to measure

Use a soft tape measure and measure directly against the body.

Triangle Bra: Use the same two measurements, underbust and full bust, and match them to the size chart below.

Between sizes

Silk is designed to contour comfortably to the body. If your measurements fall between sizes, we generally recommend choosing the larger size.

Triangle Bra

Choose your size using your underbust and full-bust measurements. Adjustable straps allow for a more personalized fit.

From Brennah, on fit.

“I’m a 32DD, and wear a Medium in our Silk Triangle Bra. It's the piece I reach for when I want something softer, lighter, and more effortless.”

BHL Size	Underbust (in / cm)	Full Bust (in / cm)	US (bra equiv)	EU
XS	26-28" / 66-71	28-31" / 71-79	30A-32B	65A-70B
S	28.5-30" / 72-76	31.5-34" / 80-86	32B-34C	70B-75C
M	30.5-33" / 77-84	34.5-37" / 88-94	34C-36D	75C-80D
L	33.5-36" / 85-91	37.5-40" / 95-102	36D+ / measurement-led	80D-85E

For Triangle sizing, use the underbust and full-bust measurements first. Bra-size equivalents are only a secondary guide.

XS–L sizing. · Crafted from silk with a touch of stretch. · Adjustable fit with soft support.

Color:

Black

Free U.S. exchanges within 15 days Discreet delivery Free U.S. shipping over $150

Free exchanges within 15 days

Discreet delivery

Complete the Eclipse Collection

Receive 10% off when you complete the set

Black Heart Lingerie Ruched Silk Thong in Black with matching silk bralette, front view

Black

Ruched Silk Thong

$68

Black Heart Lingerie Silk Garter Belt in Black with leg garters, side view

Black

Silk Garter Belt

$128

Black Heart Lingerie Back-Seamed Stockings in Black styled with a garter belt, front view

Black

Back-Seamed Stockings

$28

Total Price:

$308~~$342~~

You save $34

Silk lingerie designed to be worn your way.

The Eclipse Convertible Triangle Bra pairs soft triangle cups with two ways to wear. Made from silk with stretch and fully silk-lined, it creates a natural shape and fit. Finished with signature gold-plated hardware.

95% Silk · 5% Elastane · Fully Silk-Lined

Runs true to size. If you’re between sizes, size up. For additional guidance, see our size guide.

Hand wash cold and lay flat to dry to preserve the silk and signature gold-plated hardware.

Free standard shipping on U.S. orders over $150.

See our shipping information, including international shipping.

See our returns policy.

Find Your Fit

The Silk Triangle runs true to size across XS through L. Soft triangle cups create a natural shape and flexible fit. If you’re between sizes, size up.

See the full size guide

Why Silk?

The first layer matters.

Naturally breathable and smooth against the skin, our lingerie is fully silk-lined to place silk where it belongs: closest to the body.

Look closer

Loved by Lovies

Notes from the women who wear Black Heart.

★★★★★
I am obsessed, it’s one piece of silk that I can honestly say its already a favorite because of how it keeps my girls comfortable yet the touch of elegance takes it to another level! I love that its also a racerback!
JillieBlack Heart customer

★★★★★

One of my favorite things about this is how customizable the straps are. I’ve been able to switch up how I wear it depending on the outfit, and it always sits just right. Even with the adjustments, it still feels secure and well-structured, which really impressed me.
AnonymousBlack Heart customer

★★★★★

Package came very quickly, website was super easy to use! When I clicked on the bra it helped me complete the outfit in seconds (so that I didn’t have to find the pieces separately!) 10/10
NikiBlack Heart customer

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