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Looking for the best affordable sustainable bra to fit your exact sizing needs? 

Tired of having to rely on off-sizes or yucky materials to keep your beautiful breasts happy? Then this is the sustainable bra guide for you! 

P.S. If you’re looking for sports bras, don’t forget to check out The 15 Best Non Toxic & Organic Sports Bras For A Healthy Workout!

This post is all about affordable sustainable bras.

Let’s go ahead and say it. Finding sustainable organic bras that actually fit is a Herculean task. I was born with a small breast size: A rather uncommon 30C (with nothing to really fit that C – but that’s what the measurements say haha) and I have been relying on the common sizing of 32B for the last 10 years. 

I have to say – even as a small busted woman, the wrong-size bra is absolute hell. In fact, Dr. Erum N. Ilyas, a dermatologist and functional textile expert, points out the numerous side effects of wearing poorly fitting bras.

Spoiler Alert: They can cause everything from chafing, and skin inflammation, to skin tears, bruising, benign skin growths, and itching.

And so, with my team of various breast-size humans, we decided to create this epic guide to stop this madness.

To put together this affordable sustainable bra guide, I had to take recommendations from our writers (ranging from a size 34B to 40G) and a few of our amazing community members who were willing to chat with us about their favorite sustainable bra brands! 

Thank you to all of our contributors – you know who you are! 

The round-up includes 2024’s best sustainable plus-size bras as well as amazing affordable bras for small-bust and large-bust gals alike.

What makes a bra sustainable? ​

Unlike most traditional bras, sustainable bra brands take into consideration various factors in their design, production, and materials to minimize their environmental and social impact. 

A sustainable bra, made of organic cotton, bamboo, hemp, or other natural fibers, is designed to be durable and long-lasting, reducing the need for frequent replacements and minimizing waste.

Also, most eco undies are shipped in recycled/recyclable packaging to further minimize waste.

Can bras be toxic?

Unfortunately, much like all other clothing, bras can be toxic. Here’s a list of the most well-known chemicals in bras. 

Polyester & Nylon

Bras, like most fast-fashion items, often incorporate synthetic fabrics like polyester and nylon, derived from petrochemicals.

Polyester is known for its durability, but the production process raises environmental concerns. Nylon, while lightweight and strong, also involves energy-intensive manufacturing.

So, due to them being essentially a form of plastic, they also contribute to 35% of microplastic pollution on Earth, which can end up in the ocean.

Azo Dyes

Azo dyes are commonly used in textiles, including bras, to impart vibrant colors. However, certain AZO dyes can break down into aromatic amines, some of which are recognized as potential carcinogens.


In textiles, including bras, formaldehyde may be used in finishes to prevent wrinkles and shrinkage. Formaldehyde is a known irritant and allergen, and its use in clothing has raised health concerns. 

Flame Retardants

Flame retardants may be applied to bras to meet safety standards. While these chemicals aim to reduce flammability, concerns exist about their ability to cause endocrine and thyroid disruption, immunotoxicity, reproductive toxicity, cancer, and adverse effects on fetal and child development.

Antimicrobial Treatments

Bras may undergo antimicrobial treatments using agents like triclosan or triclocarban. These chemicals have faced scrutiny due to environmental persistence and potential health effects. 

Metal Components – Nickel & Chromium

Metal components like underwire in bras may contain nickel or chromium. Nickel is a common skin allergen, and some individuals may experience irritation or allergic reactions. 

15 Affordable, Sustainable & Gorgeous Bras For All Sizes!

1. Cosabella

sustainable bralette

Cosabella, which means “beautiful thing” in Italian, is a gorgeous size-inclusive and ethically made bra and underwear brand. 

The options are seemingly endless in color, shape, and size – you will 100% find what you are looking for! 

From petites to plus sizes with authentic Italian craftsmanship, the family-owned brand has been crafting beautiful undies since 1983. 

Variety of bras from wireless, wired, strapless, post-surgery, cross strap, and so much more. 

I personally own 2 of the Cosabella bras – and they are one of the only brands that carry my exact bra size: 30C!

Best Sustainable Bras from Cosabella: 

Price Range: From $69.75 

Size Range: A-I + Maternity 

Ethics: Family-owned business, 100% made in Italy by Italian Artisans, ethically & sustainably made  

Location/Shipping: Italy, ships worldwide 


best Sustainable organic bras

CUUP offers over 40 different bra sizes, ranging from A to H! 

These affordable bras for small busts and large busts are somewhat of a cult favorite and for good reason.

CUUP knows bras and knows how to create the perfect fit for various body types! 

The collection includes more than fifty modern, minimal, unlined bras with deep V, round, and straight necklines as well as options with supportive shaping and smooth lines for a barely-there feel.

Best Sustainable Bras from CUUP: 

Price Range: From $65+ 

Size Range: 30-44 | A-H 

Ethics: supply chained integrated, ethically made 

Location/Shipping: United States 

3. Woronstore

sustainable bras

No toxic chemicals, no toxic dyes, no chafing, and absolutely no metal pokes.

Let’s just say that Woronstore knows exactly what we need from our affordable good quality bras.

Hailing from the city of Copenhagen, they specialize in crafting fair trade underwear designed for ultimate women’s comfort.

Their secret? Natural, breathable materials such as Lenzing Modal and GOTS-certified cotton prioritize your well-being. 

You can opt for lace-trimmed soft-bras, grab an ultra-sexy, sustainable bralette with mesh, or go with the classics.

Hypoallergenic, anti-bacterial and oh-so-pretty.

Price Range: From $45+ 

Size Range: XS-XL 

Ethics: GOTS Certified, OEKO-TEX® Certified, PETA Approved Vegan, fair labor Plant-based fibers, ethically made

Location/Shipping: Denmark, ships worldwide 

4. Pact

sustainable bras

From the most swoop-worthy organic kids underwear, and sustainable socks to eco-friendly leggings, Pact aims to outfit us with utterly soft basics that will last a lifetime. 

Their range of sustainable bras includes wear-me-everywhere double scoop styles, comfy racerbacks, plunge, triangle bras, and bralettes in more than 12 different colors. 

Of course, every product is lovingly crafted in fair trade factories with quality organic cotton. 

Even their packaging is a 100% recycled poly mailer or a biodegradable paper box.

Price Range: From $30+

Discount Code: SKL15 to get 15% off for first-time customers – Full-priced items only and cannot be used with other offers  

Size Range: XS-XXL 

Ethics: GOTS Certified, Fair Trade USA, Carbon Neutral Certified, sustainable materials, ethical manufacturing, climate-friendly, SimpliZero 

Location/Shipping: United States, ships worldwide 

Best Sustainable Bras from Pact:

5. Julie May UK

sustainable bras

In addition to non-toxic sports bras, Julie May ethical brand also offers an array of sustainable organic bras for everybody and preference.

You can find everything from sustainable bralette options and bras with underwire to post-surgery and front-fastening bras.

The company uses Certified organic pima cotton and pure silk which is a dream blend for allergy-free undies.

And when it comes to washing, they stick to eco-friendly detergents and softeners, steering clear of harmful dyes and bleach.

Whether adorned with delicate embroidery motifs and romantic floral prints or leaning towards inherently feminine and classic designs with lace detailing, they have so many options.

Best Sustainable Bras from Julie May: 

Price Range: From $62+ 

Discount Code: JULIEMAY for 10% off your first order

Size Range: 8-18 | 32B-42DD  

Ethics: GOTS Certified, ethical, fair trade & sustainable, organic fabrics, recyclable paper packaging 

Location/Shipping: United Kingdom, ships worldwide 

6. WAMA Underwear

sustainable bras

When it comes to affordable bras for small busts, WAMA is the brand for you.

Crafted with hemp and OEKO-TEX organic cotton fabric, these sustainable organic bras are ideal for those relaxed and comfy moments.

Partnering with BSCI-certified factories and collaborating directly with organic farmers in China, WAMA ensures that every step of their process is in line with sustainability. 

Best Sustainable Bras from WAMA: 

Price Range: $44

Size Range: XS-4XL 

Ethics: OEKO-TEX® Certified, PETA Vegan Approved, Green America, fair wages & quality working environment, transparency 

Location/Shipping: United States, ships worldwide 

7. Subset

sustainable bras

From organic cotton soft bras and triangle bras to sustainable bralette options, Subset focuses on providing all-day comfort and style, no matter your size or aesthetic preferences.

With Fair Trade, GOTS, and OEKO-TEX certifications, you can trust that your sustainable plus-size bras and bras for petites are not only stylish but also environmentally conscious.

Just pick the color that suits your style, and you’re ready to go. 

Plus, you can save when you bundle.

Best Sustainable Bras from Subset: 

Price Range: From $48+ 

Size Range: 2XS-3XL 

Ethics: GOTS Certified, OEKO-TEX® Certified, Fair Trade International, FSC Certified, recycling program

Location/Shipping: United States, ships worldwide

8. Tentree

sustainable tencel bras

Tentree might be known as one of the best sustainable clothing brands, but did you know that they also offer sustainable Tencel bras?

Their bra collection is made from TENCEL™ x REFIBRA™ high stretch knit, a one-of-a-kind sustainable material that is ultra-lightweight, totally breathable, and silky smooth! 

The blend features upcycled cotton pulp combined with wood pulp – and it’s more sustainable than the most sustainable fabrics in your underwear arsenal. 

On top of that, the brand plants 10 trees for every sale!  

Best Sustainable Bras from Tentree: 

Price Range: $40 

Size Range: XS-XXL 

Ethics: Certified B Corporation, Climate Neutral Certified, sustainable & recycled fabrics, fair labor, donations  

Location/Shipping: United States, ships worldwide 

9. Girlfriend Collective

best sustainable strapless bra

Apart from their fantastic line of plus size swimwear, Girlfriend Collective aims to dress everybody in sustainable bras that hug our silhouettes in all the right places. 

Ethically made from recycled materials, the line is not only designed for low-impact activities offering maximum comfort and mobility but can also be recyclable with ReGirlfriend. 

To top it all off, their Fair Trade certification ensures that each product is lovingly made in ethical factories.

Best Sustainable Bras from Girlfriend Collective: 

Price Range: From $42+ 

Size Range: XXS-6XL 

Ethics: SA8000 certified, ethical manufacturing & recycled materials, recycled & recyclable packaging, transparency

Location/Shipping: United States, ships to Canada, United Kingdom, Australia

10. Wilde Mode

sustainable bra brands

Wilde Mode is a fan favorite and loved by so many folks around the world. 

They have an amazing team working to create the most comfortable and size-inclusive underwear line out there, as well as dozens of sustainable leggings – and we absolutely love them! 

The brand focuses on OEKO-TEX-certified fabrics, often adorned with fun, vibrant prints. 

Their sustainable bras are all handmade in Scotland in safe and responsible workplaces.

Price Range: From $42+ 

Size Range: 24-60 inch bust | AA-O Cup Size + Custom sizing available 

Ethics: GOTS Certified, OEKO-TEX® Certified, made to order, made in small batches, small women-owned business, sustainably & ethically made 

Location/Shipping: Scotland, ships worldwide 

11. Boody

sustainable bralette

Boody is lauded as one of the best sustainable underwear brands for OEKO-TEX-certified organic bamboo undies. 

The collection includes fair trade crop-top bras that double as workout staples, shaper bras, triangle bralettes, and bandeau styles. 

The best part? No wires, clasps, and hooks are involved, so comfort is pretty much guaranteed. 

Also, the regenerated material comes from FSC®-certified forests grown without pesticides, fertilizers, or artificial irrigation.

Best Sustainable Bras from Boody: 

Price Range: From $19.95+ 

Size Range: XS-3XL 

Ethics: OEKO-TEX® Certified, ECOCERT, PETA Vegan Approved, sustainable materials, eco & fair production, gives back 

Location/Shipping: United States

12. Organic Basics

sustainable push up bras

From wear-me-everywhere tencel clothing to ethical and sustainable basics, this bra was created with everyone’s sartorial needs in mind – that includes affordable bras for all shapes and sizes. 

Organic Basics was my very first introduction to sustainable bras and panties, and it did not disappoint. 

I reach for my tencel bralette at least 3 times a week, and it is as comfortable as it is beautiful! 

However, you can also find a slew of organic cotton undies, and sweat-wicking recycled crop tops that double as sports bras

Plus, all their sustainable bras are ethically made in Portugal. 

Best Sustainable Bras from Organic Basics: 

Price Range: From $26+ 

Size Range: A-C 

Ethics: GOTS Certified, PETA approved vegan, recycled, recyclable & organic materials, ethical production, donate to sustainable projects  

Location/Shipping: Denmark, ships worldwide 

13. Proclaim

sustainable bras

Proclaim’s lineup of affordable bras for small busts and large busts comes in an array of vibrant colors which we absolutely love.

They currently offer two options: One square neck sustainable bralette and one triangle square neck bralette

Crafted with a mix of Tencel lyocell (or modal), organic cotton, and hemp, these undies are not just comfortable but also ethically made in the heart of Los Angeles, California.

It’s no wonder why this USA-based brand is one of the best sustainable fashion brands in 2024!

Best Sustainable Bras from Proclaim: 

Price Range: From $59+ 

Size Range: A-DDD | S-3X 

Ethics: OEKO-TEX® Certified, fair labor, family-owned, BIPOC-owned apparel factory, 100% home compostable mailer packaging

Location/Shipping: United States, ships to Canada, UK, New Zealand, Australia 

14. Only Hearts

best sustainable tencel bras

Only Hearts is a beloved affordable sustainable bra brand offering an array of retro-inspired styles with flattering lines that contour and enhance the bust in the best way possible. 

If you love racerback bras, cropped cami’s, underwire bras, and basic tank bras, this collection should be on your eco radar. 

Plus, everything is crafted ethically from 100% organic Pima cotton from Peru and pre-treated with non-toxic, Global Organic Textile Standard bleaches made with hydrogen.

Best Sustainable Bras from Only Hearts: 

Price Range: From $48+ 

Size Range: P-XL 

Ethics: GOTS Certified, sustainable organic materials, toxic-free dye, ethically manufactured 

Location/Shipping: United States, ships worldwide 

15. Uye Surana

best comfortable sustainable bras

Uye Surana is on a mission to help you find the perfect sustainable bra for your perfect body. 

They offer lingerie that accommodates up to 70 sizes, ranging from XS-3XL! 

The oh-so-chic options range from cult-favorite, patent-pending ultra-adjustable bralettes and sustainable wireless bras to sultry high-neck bralettes with prints. 

Of course, monochromatic seamless styles are also available for your everyday shenanigans. 

To top it all off, everything is designed in NYC and produced in small batches in Colombia or the Garment District. 

Best Sustainable Bras from Uye Surana: 

Price Range: From $45+ 

Size Range: XS-5XL 

Ethics: Small, family owned & operated factory in Colombia, ethical production, reduced waste printing, 100% biodegradable or recyclable packaging, commitment to transparency 

Location/Shipping: United States, ships worldwide 

What are the best materials for sustainable bras?

Organic Cotton

Organic cotton is a natural and breathable fabric cultivated without synthetic pesticides or fertilizers. Its production minimizes environmental impact, promotes healthier soil, and offers a comfortable feel against the skin, making it an excellent choice for sustainable bras.


Bamboo fabric, derived from the fast-growing bamboo plant, is soft, moisture-wicking, and naturally antibacterial. The material’s sustainability lies in bamboo’s rapid growth, minimal water requirement, and the luxurious silky sensation it provides, making it an eco-friendly option for bras.


Hemp, a durable and versatile fiber, is derived from the hemp plant. Known for its minimal need for water and pesticides, hemp is an environmentally friendly choice for bras. Its durability ensures longevity, contributing to a sustainable wardrobe.

Tencel (Lyocell)

Tencel, a type of lyocell fabric sourced from wood pulp, often eucalyptus trees, is produced in a closed-loop process. This sustainable material requires less water, offers a soft and silky texture, and is an excellent choice for comfortable sustainable bras.


Modal, a type of rayon derived from beech tree pulp, is sustainably sourced and requires less water than cotton. Known for its luxurious feel, modal is an eco-friendly choice for bras that combines comfort with environmental responsibility.

How to find the right bra size?

Finding the right bra size is crucial for comfort and support.

First, use a soft tape measure to measure around your rib cage, just below your bust. Ensure the tape is snug but not too tight.

Round the measurement to the nearest whole number. If it’s even, add 4 inches; if it’s odd, add 5 inches. This gives you your band size.

Now, wrap the tape measure around the fullest part of your bust, making sure it’s parallel to the ground. Round this measurement to the nearest whole number.

Now, subtract your band size from your bust measurement. The difference corresponds to your cup size:

  • 1 inch: A Cup
  • 2 inches: B Cup
  • 3 inches: C Cup
  • 4 inches: D Cup, and so on.

Combine your band size with your cup size to get your final bra size. For example, if your band size is 34 inches and your bust measurement is 36 inches, your bra size would be 34B.

How often should you replace your bras?

Bras worn regularly for day-to-day activities typically last about 6 to 12 months. The elastic fibers in the band and straps can lose their elasticity over time, affecting the bra’s support.

Bras reserved for special occasions and worn infrequently can last longer, potentially up to 24 months or more. However, proper care is still essential.

If the band rides up or feels loose, and the straps don’t stay in place, it may indicate a loss of elasticity. Make sure to check for stretched-out fabric, fraying, or underwire poking through. These signs suggest it’s time for a replacement.

How do I properly care for a bra? ​

Sustainable bras have a very long lifespan – but only if you properly take care of them. 

Handwash your bras with cold water and your favorite eco-friendly detergent. Let them sink for a while and then rinse them out and air dry them. 

Heat is elastics’ worst enemy, so let your dryer rest – we don’t need it. Repeat the process every two to three wears.

This post was all about affordable sustainable bras.

While everything is a matter of personal aesthetics, we are 99% certain that you will be able to find your new favorite ethical bra from one of the best affordable sustainable bra brands on our list. 

From multi-printed sustainable bralettes and romantic lace undies to comfy sports bras and maternity bras, the options are pretty much endless. 

If you enjoyed this article on Affordable Sustainable Bras, check out these other articles below!

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