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Core Triangle Bralette

Core Triangle Bralette

365 DKK
365 DKK
90% organic cotton
Color: Steel Blue
Color
Size
Only 0 left in stock

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• 90% Organic Cotton
• V-Neckline
• Medium Support
• Unpadded
• 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 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 bra made with 90% organic cotton
  • Adjustable straps and back hook-and-eye closure for a flexible fit
  • A supportive elastic underband covered in soft organic cotton
  • Double layer in cups for added comfort and subtle shaping
  • Unpadded and wireless design
  • Low-cut to work with multiple different necklines
  • Please note that for our + sizes, and for XXL and XXXL this bra has overlapping cups in the front to offer the best support.
  • 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.

ultra-soft, stretchy single jersey, 90% organic cottom

Made in Indonesia

Established in 1977, PT. Liebra Permana is a family-owned factory that quickly expanded into one of the top production facilities in Indonesia. By using cutting-edge technologies like SAP, LP4M, HI-TECH, and TUKATECH, this factory streamlines its processes to minimize waste, while manufacturing high-quality pieces that last.

5 % less kg CO2e
OUR Product Footprint1.98kg CO2e
Industry Standard2.09kg CO2e
kg CO2e
Tier 01: Garment Assembly
Final assembly of the items, often referred to as cut & sew facility
0.27
Tier 02: Dyeing
Preparation and production of subcomponents such as fabrics and trims
0.78
Tier 03: Spinning
Process of raw material such as yarn production
0.62
Tier 04: Raw Material
Cultivation, production and extraction of raw materials from earth, plants and animals, such as cotton cultivation
0.22
Packaging
Packaging of the final product such as tags, glassine bags and boxes
0.08
Transport
Transport of products from the site of final assembly to the distribution centre
0.02
Use + End of life
Use, care and disposal of clothing, including washing
3.01
Traceability
Tier 01: Garment Assembly
Final assembly of the items, often referred to as cut & sew facility
Indonesia
Tier 02: Dyeing
Preparation and production of subcomponents such as fabrics and trims
China
Tier 03: Spinning
Process of raw material such as yarn production
India
Tier 04: Raw Material
Cultivation, production and extraction of raw materials from earth, plants and animals, such as cotton cultivation
India
Packaging
Packaging of the final product such as tags, glassine bags and boxes
China
Transport
Transport of products from the site of final assembly to the distribution centre
Sea
Use + End of life
Use, care and disposal of clothing, including washing
Spain
Total ImpactSavings
Acidification
Indicator of the potential acidification of soils and water due to the release of gases such as nitrogen oxides and sulphur oxides.
0.77 mol H+-Eq
1%
Energy
Use of energy across all processes and sub-processes, such as use of electricity and heat sources.
23.90 MJ
3%
Eutrophication
Indicator of the enrichment of the aquatic ecosystem with nutritional elements, due to the emission of nitrogen or phosphor containing compounds.
1.77 mol N-Eq
1%
Freshwater Ecotoxicity
Impact on freshwater organisms of toxic substances emitted to the environment.
829.02 CTUe
0%
Greenhouse gases
Greenhouse gases are those that absorb and emit infrared radiation in the wavelength range emitted by Earth. Measured in CO2 equivalent, it includes gases such as carbon dioxide, nitrous oxide and methane.
1.98 kg CO2e
5%
Land
The environmental impacts of occupying, reshaping and managing land for human purposes.
40.43 pts
6%
Water
The sum of water used in the direct-process or sub-processes (such as energy generation).
40.40 m3
-38%
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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Overall rating: 4.7534437 / 5 from 726 reviews.

AI Generated Review Summary

The Core Triangle Bralette is praised for its buttery-soft, breathable material and excellent quality. Customers appreciate its sexy and comfortable look, as well as the great support it provides. However, there are mixed opinions about the fit and sizing.

Summary topics

  • Material Comfort (13%): Customers raved about the material, praising its softness, comfort, and high quality.
  • Aesthetic Appeal (5%): Customers loved how the bra looked on their bodies, describing it as sexy, cute, and comfortable.
  • Skin Feel (6%): It was highlighted by customers that the product feels great on the skin, with many describing it as soft and comfortable.
  • Product Quality (12%): Customers raved about the great quality of the product, with multiple mentions of excellent, amazing, and amazing quality.
  • Fabric Quality (12%): Customers raved about the fabric, describing it as soft, comfortable, and of excellent quality.

Review topics: [size, fit, fabric, support, waist, color, material, problem, style, design, look, feels, quality, cut, comfort, shirt, band, straps, shape, price, coverage, padding, texture, wear, construction, seams, clasp, bra, comfy, thickness].

Review highlights

  • "It is super comfortables and discrete, provides good support and has a good feel (love the organic cotton!)" — Anonymous
  • "High quality, comfortable cotton, strong straps, good support and a very good fit." — Kim R.
  • "The fit is true to size, the feel is soft and flexible and its looks great." — Rikke-Louise A.

Reviews

Best Bra Ever!

"I have been looking for a bra that fits my larger 38 band size and smaller A cup size. That size combo, especially with back hooks, had been impossible for me to find. I also wanted organic fabric, especially for this first layer/all day wear--and I'm thrilled to have found the Core Triangle Bralette. The design and thickness of the fabric is perfect, with no awful underwire--it's very comfy and flattering. Plus shipping was incredibly fast and customer service was quick, friendly, and helpful! I'm 5'7" 175 lbs, bought the XL initially but exchanged for a L and it fits even better. You really can't go wrong with this bra--the price point is great too!"

— Tiffani G. (5/5)

I wanted to express my

"I wanted to express my thoughts and also, yes, my disappointment. In late 2024, I ordered what has been 100% the best bralette in my whole life. It was designed by you and was comfortable, super high quality and with great materials. It was OB Core Triangle Bralette in M+ size. Now it has served its time, and I ordered again - I thought, they are so great, I'll just grab a couple. They arrived a few days ago, and I am wearing one for the first time today, and I am sad. The straps are so thin and too elastic to keep my boobs inside, and the triangle for the breast has less coverage. So here I am with half a boob out, going about my day and thinking about how great the product was when I first bought it. I wish OB would reconsider your design, and I hope to purchase this amazing product once again at its full glory."

— Kristiana K. (2/5)

Comfy and Versatile

"The color is perfect (hazelnut), works under everything. I got an Xs I’m about a 30-32 A and it fits on the largest loop so I have 3 smaller sizes when it stretches out after use. It’s buttery soft. Straps have more than enough length to accommodate short or long torso length. Coverage and cut hides perfectly his under all my shirts, I really like that the straps in the back are not thick triangles that attach to the back strap, they’re just the skinny straps. Love this investment in an organic cotton staple!"

— Raquel G. (5/5)

I have a narrow back,

"I have a narrow back, but a heavy chest, so I usually struggle to find bralettes that both fit and provide enough support. This one does it. All the love songs of the 80's make sense now that I have it."

— Malena O. (5/5)

Super Comfortable & Fit Great

"I love the fit, the fabric, and the look. I had a bra from years ago that worked for me, but then they stopped making it. And i have looked and looked, and bought and bought, only to have a drawer full of bras that dont fit well, dont look good under clothes, and/or are not comfortable. But I thought, i have to try again. And somehow i came across Organic Basics. And Wow! Am am i glad i did. The fabric is awesome and the style is perfect. They bras are comfortable, look good under clothes, and are just what i wanted and needed. I recommend Organic Basics to everyone. I'm looking forward to rooting around the website to check out other items -- if their bras are this great, i'm sure to find other fabulous items i need!"

— Maya R. (2/5)

Great everyday bra but size up!

"Lovely soft fabric! I originally bought xs based on the measurements but returned for a s. Definitely size up, especially if you are a larger cup size - I’m a D/DD. I’ve since ordered the s+ which I prefer for everyday wear due to the thicker straps and more coverage in the front. I’ll be keeping the s for lower cut / thin strap clothing."

— Rachel S. (4/5)

Gorgeous colour, perfect fit

"Perfect summary colour and the softest material. Purchased a size s, as a size 8(uk), 32c. Fastens on the tightest hook and eye so could probably have gotten away with an xs too"

— Louise R. (5/5)

Beautiful colour, really bright red.

"Beautiful colour, really bright red. Had a bit of a problem finding the right size. I normally wear an L+ bun unfortunately it’s not available in this colour. According to the size chart I would need an L but that was really unsupportive compared to L+. Thinner straps,side piece etc. Changed for an XL which was better for these parts but the coverage in front was not enough for me, when moving my boobs would fall out. But because I love the quality and colour so much I made an adjustment myself, sewed the lower parts of the cups together, now it’s perfect!"

— Loes F. (5/5)

Q&A