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Sophie is 177 cm / 5'10" and wears L

Sophie is 177 cm / 5'10" and wears L

COTTON

Core Triangle Bralette 2-pack

$75 ~~$100~~

$75

90% organic cotton

Color: Black / Hazelnut

Size

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The Bra Size Calculator

Take your measurements using the instructions below, then enter them into the fields to find your best fit.

How to measure

Where to measure your underband (1) and bust (2)

1
Underband size

Wrap a measuring tape snugly around your ribcage, just under your bust. Make sure the tape is level all the way around. Add the measurement in the calculator above.
2
Bust size

Measure around the fullest part of your bust, keeping the tape level and not too tight. Add the measurement in the calculator above.

Sophie is 177 cm / 5'10" and wears L
Alex is 177 cm / 5'10" and wears XS
Meirav is 176 cm / 5'9" and wears XL

Bra Size Guide

Centimeters Inches

Centimeters	xxs	xs	s	m	l	xl	xxl	xxxl
Bust	76.2-78.7	80-83.8	85-88.9	90.2-96.5	97.7-109	110.5-114.3	115.5-120.5	122-127
Underband	63.5-67.3	68.6-72.4	73.5-77.5	78.7-83.8	85-90.2	91.4-96.5	97.7-102.8	104.1-109
Cup (FR)	75A, 75B, 75C	80A, 80B, 80C	85A, 85B, 85C	90A, 90B, 90C	95A, 95B, 95C	100A, 100B, 100C	105A, 105B, 105C	110A, 110B, 110C
Cup (US)	28A, 28B, 28C	30A, 30B, 30C	32A, 32B, 32C	34A, 34B, 34C	36A, 36B, 36C	38A, 38B, 38C	40A, 40B, 40C	42A, 42B, 42C
Cup (EU)	60A, 60B, 60C	65A, 65B, 65C	70A, 70B, 70C	75A, 75B, 75C	80A, 80B, 80C	85A, 85B, 85C	90A, 90B, 90C	95A, 95B, 95C

Inches	xxs	xs	s	m	l	xl	xxl	xxxl
Bust	30-31	31.5-33	33.5-35	35.5-38	38.5-43	43.5-45	45.5-47.5	48-50
Underband	25-26.5	27-28.5	29-30.5	31-33	33.5-35.5	36-38	38.5-40.5	41-43
Cup (FR)	75A, 75B, 75C	80A, 80B, 80C	85A, 85B, 85C	90A, 90B, 90C	95A, 95B, 95C	100A, 100B, 100C	105A, 105B, 105C	110A, 110B, 110C
Cup (US)	28A, 28B, 28C	30A, 30B, 30C	32A, 32B, 32C	34A, 34B, 34C	36A, 36B, 36C	38A, 38B, 38C	40A, 40B, 40C	42A, 42B, 42C
Cup (EU)	60A, 60B, 60C	65A, 65B, 65C	70A, 70B, 70C	75A, 75B, 75C	80A, 80B, 80C	85A, 85B, 85C	90A, 90B, 90C	95A, 95B, 95C

XXS XS S M L XL XXL XXXL XXXXL

Product variants

Only 0 left in stock

Produced using -8% less kgCO₂e than industry standard

Designed in Copenhagen

Made for anywhere

• Free from harmful chemicals

Free from harmful chemicals

This product is GOTS-certified. GOTS has strict chemical criteria aimed at protecting the health of workers, the environment and the end consumer. GOTS prohibits allergenic and carcinogenic chemicals, and those that don’t meet rigorous conditions, including flame retardants, PFAS and toxic dyes.

This buttery-soft triangle bralette has a plunging front, perfect under any neckline and is made with 90% ultra-smooth organic cotton. Breathable and feeling like a second skin, it has zero wires – but plenty of support.

Triangle bralettes with a full cup coverage, medium support and a light lift
Wireless design with supportive elastic underband covered in soft fabric
Unpadded, with triple layered cotton cups for best support, hold and look
Soft wear that lets your natural shape show
Low-cut to work with multiple different necklines
Adjustable straps
Adjustable hook-and-eye closure
Made with 90% organic cotton
Soft and stretchy with 5% added elastane Please note: for our + sizes, and for XXL and XXXL this bra has overlapping cups in the front to offer the best support.
Black: The one we restock most. Black goes well under everything and shows nothing.
Hazelnut: A warm, light brown with soft beige undertones. An easy neutral that falls somewhere between beige and our deeper brown shades.
Runs big—if between sizes, we recommend to size down
For best hold, the underband and side wings should fit snugly
Choose a size where you fully fill out the cups for optimal support and comfort
If your bust spills over the cups or sides, loosen the straps or size up
If the cups wrinkle, gape, or feel too loose, size down

Cotton is a natural fiber that is commonly used for its breathability and softness. Using organic cotton instead of regular cotton has the potential to build soil health, as it is grown without the use of synthetic fertilizers.

90% Organic Cotton, 10% Elastane
Hand wash cold
Only non-chlorine bleach when needed. Do not iron. Do not dry clean.

CO2 Impact Product journey Environmental impact

kg CO2e

0.86

1.59

1.10

0.44

0.08

0.03

37.27

Traceability

Indonesia

China

India

China

Sea

Spain

Total ImpactSavings

0.03 mol H+-Eq

5.90 MJ

71%

0.05 mol N-Eq

28%

23.50 CTUe

87%

4.10 kg CO2e

-8%

81.57 pts

-124%

1.76 m3

-40%

This data comes from a Life Cycle Assessment conducted by Made2Flow, specifically for the product featured on this page. These calculations apply to the most recent delivery of this product to our warehouse in 2025 and will be refreshed annually if the product is restocked. Read more about the calculations here.

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Core Thong

Core Briefs

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Overall rating: 4.7623763 / 5 from 707 reviews.

AI Generated Review Summary

This Core Triangle Bralette 2-pack is praised for its buttery-soft fabric, exceptional quality, and comfortable fit. While some customers found the straps adjustable but prone to falling off, the overall support and feel are highly appreciated. Sizing tends to run small, so ordering a size up is recommended.

Summary topics

Fabric Softness (13%): Customers expressed appreciation for the softness and quality of the fabric used in the product.
Product Quality (11%): It was reported by customers that the quality of the product is consistently described as great, amazing, exceptional, and high.
Product Fit (29%): A significant number of customers loved the fit of the product, describing it as perfect, great, and comfortable.

Review topics: ["size","fit","color","issues","shape","look","fabric","feels","material","quality","comfort","shipping","style","design","band","bra","straps","coverage","padding","bralette","cut","construction","texture","support","comfy","customer service","seams","cups","thickness","clasp"].

Review highlights

"High quality, comfortable cotton, strong straps, good support and a very good fit." — Kim R.
"It has nice thick straps that aren’t too thick and very decent thickness in the cup." — Jg
"Great fit, comfortable, and I love the colour for summer!" — Krysten O.

Reviews

Super comfortable soft fabric!

"I bought a size S (usually wear S/2-4/30D/32C) and it fits great! Very soft fabric and no tags that make skin irritated. Great for lounging around the house or when I just want to wear something comfortable! Won’t be going back to the other brands I used to buy."

— Olivia (5/5)

Overall really nice, the fabric

"Overall really nice, the fabric is soft but holds everything together. I only wish it gave a little bit more support or thicker fabric, but still a good fit. The straps are wide and therefore really comfortable"

— Luisa M. (4/5)

The quality of the fabric

"The quality of the fabric is fantastic and makes this bralette so comfy! Provides good nip coverage without padding. The red color is really pretty and feels a bit fancy. I’m 5’9 130lbs and normally wear 34B, the small fits perfectly."

— Alaina B. (5/5)

Really comfortable. Gives a boost

"Really comfortable. Gives a boost somehow and so very flattering. Plus from a b corp? Will buy again 100%"

— Diana G. (5/5)

Soft and comfortable

"I love that the material is organic and this is very comfortable and makes my boobs look nice! This is going to be my go-to bra now for sure."

— Helen B. (5/5)

Very comfy bralette and flattering

"Very comfy bralette and flattering the breast. Also there is no metal or other annoying material that goes into the skin and hurts like some other brands. They don't feel like putting the boops in jail, which is great."

— Sarah S. (5/5)

The bra was incredibly comfortable,

"The bra was incredibly comfortable, but i don’t have the biggest chest and it flattened it out quite a bit extra. So while this design was not for me i still very much liked the quality and the softness of the product."

— Emma C. (5/5)

The best!

"This is my favorite bra to wear under low cut and strappy dresses. It's cut low enough that it won't peak out and the colors are super cute so it looks good if the straps show. True to size, fits perfectly. Soft and light but with just enough support."

— Camilla A. (5/5)

The Core Triangle Bralette

"I am a tried and true return customer for the Core triangle Bralette. It is my staple. The fit is amazing. There is no digging uncomfortable straps. There is no pulling on it all day long. It just fits. Smooth. Comfortable. Always."

— Heather S. (5/5)

These are very comfortable and

"These are very comfortable and soft, I’ve been wearing them every day."

— Steffi S. (5/5)

Core Triangle Bralette 2-pack

Core Triangle Bralette 2-pack