🚚 FREE US Shipping & Returns 🌿

17 Best Sustainable Underwear Brands

A woman sits on the bed wearing sustainable underwear from WAMA underwear.

Of all sustainable clothing, it makes sense that sustainable underwear—you know, the fabric that covers your most vulnerable parts—would be the most important. So whether you’re sporting a hemp bra or hemp mens boxers, you’re looking out for the health of your, ahem, private parts.

And because sustainable fabrics are on the rise, you can find hemp underwear, linen underwear, organic cotton underwear, organic bamboo underwear, and more popping up everywhere, even in fast fashion and big-box stores. But since I prefer slow fashion, I’ve rounded up my favorite sustainable underwear brands that offer the real deal in eco-friendly unmentionables.


A woman watering plants stands by the window wearing sustainable underwear from WAMA.

“Sustainable” simply means maintaining something at a certain rate, so how does that relate to your undies? Think about the entire process of getting that pair of bikini underwear or mens briefs onto your body. Can that process be maintained, as in, is it sustainable? To answer that question, here are a few factors to consider:

  • Fabric. Certain fabrics are more sustainable than others, meaning farmers can maintain their growth. Take hemp vs cotton, for example. Using modern farming techniques to produce just 2.2 lbs of cotton, you’d need over 5,000 gallons of water. For hemp, you only need 80 gallons of water (usually just rainwater) to produce 2 lbs of fabric. The amount of water cotton requires is not sustainable.  

    Read up on organic cotton vs cotton to understand why organic cotton underwear requires less water than its conventional sibling and still falls into the sustainable underwear label.
  • Manufacturing Process. Growing the material is just one piece of the sustainable puzzle. The manufacturing process, as in how those 2.2 lbs of cotton become a t-shirt or pair of jeans, is also important to consider. Because of the washing and dyeing process, just one pair of jeans requires 2,500 gallons of water, one pound of toxic chemicals, and an incalculable amount of energy. It’s easy to see that cotton denim isn’t sustainable!

A couple dances in the forest while wearing organic underwear.
  • Longevity. How long do the cotton t-shirts you get from H&M last? For me, I notice the change in shape and feel after the very first wash, with fraying and pilling in just weeks. Part of sustainable underwear is making clothing that lasts. Hemp, for example, is the strongest natural fiber on the planet and gets stronger the more you wash it.

    Okay, but is hemp stronger than steel? I bet you didn’t expect the answer to be yes! It’s seriously so strong and durable that your weed underwear will last you a long time, so you’re not adding to the landfill dump, where a whopping 85% of textiles end up—not sustainable.
  • Business Practices. What’s up with the brand’s business practices, besides growing and manufacturing? Can they be maintained? For example, think about the workers making your t-shirts and jeans. One study released a few alarming facts: 16% of laborers worldwide work in the fashion industry, with only 2% of them earning a living wage. Definitely not sustainable.

A man in sustainable underwear practices yoga in a park.

After thinking about these factors, you can get a better idea of what makes clothing more sustainable. It’s happy clothing that doesn’t hurt you when you wear it or the environment when it’s grown or harm other human beings when it’s processed. Together, this makes sustainable underwear.


You can feel confident in the list above, knowing you’re supporting good businesses that produce high-quality sustainable and organic underwear. But what about when you’re browsing the mall in search of a good pair of panties or boxers? How do you know a brand is actually practicing what they preach? You gotta do your research.

A woman shopping at the mall looks at her phone while researching sustainable underwear brands.


The term “greenwashing” refers to brands that use campaigns, advertisements, marketing strategies, or occasional product releases to pretend that they are a green or sustainable company. The best example of this is the fast fashion industry.

The fashion industry produces 10% of the world’s carbon emissions—more than international travel and maritime shipping combined. But when H&M sports their “conscious” label, you as a consumer are meant to believe they’re a sustainable company. But they aren’t producing all their products under this “sustainable” value, and their manufacturing and business practices are still questionable.

A woman wears a pair of WAMA’s hipster sustainable underwear.

Instead, look for brands that happily disclose their practices and explain how they do it. Take WAMA’s hemp underwear, for example. WAMA gets hemp in China, the world’s largest producer of this natural, eco-friendly fabric. In China, mostly family-operated, organic farms grow the plant, and WAMA partners with fair-wage factories that offer safe working environments under a strict Supplier Code of Conduct.

When in doubt, go with hemp underwear or use the list below to help you stick to the best sustainable underwear brands.


There are so many amazing brands that sell sustainable underwear these days. You can choose hemp underwear, sustainable bras, Tencel panties, organic bamboo underwear, linen underwear, and organic cotton underwear. In my opinion, these 17 brands are worth your attention.


A man stands wearing WAMA sustainable underwear.

As the pioneer of hemp underwear, WAMA is a vegan company and PETA-approved. The brand is a member of Green America, the National Hemp Association, and the Business Social Compliance Initiative (BSCI) and is Oeko-Tex Certified. Whoop!

  • Demographic: Men's underwear styles and women's underwear styles
  • Materials: Hemp/Organic Cotton/Spandex
  • Perks: Free shipping in the US, plus free returns and exchanges. Your very first pair is guaranteed (seriously, if you don’t love it, you can exchange it or get a refund).


WAMA is the leader in hemp underwear, making the strongest and most sustainable underwear out of this miracle plant. If you don’t already know all the amazing hemp leaf benefits, you’ll be happy to hear that it makes naturally antibacterial underwear that’s breathable, durable, and very healthy for your down-there environment.

You can choose from every style, from mens briefs to mens boxers and women’s thong underwear to high waisted underwear, plus hemp bralettes like the triangle bralette and racerback bralette.



A woman sits on a couch eating an apple and wearing organic underwear.

Organic Basics focuses on making organic underwear that lasts by investing in high-quality fabrics and artistry. The brand uses only Class A and Class B fibers, including GOTS-certified cotton. They use several factories in Europe, many of which sport the EU Eco Label and FSC (Forest Stewardship Council) and Oeko-Tex Standard 100 certifications.

  • Demographic: Men and women
  • Materials: Organic Cotton/Tencel/Elastane/Recycled Wool/Recycled Nylon
  • Perks: Get 10% off your first order, which you’ll receive in recycled packaging with the option for worldwide carbon-neutral shipping.


Score high-quality organic underwear or Tencel underwear, or opt for activewear and other clothing made with recycled materials. Their signature circular denim initiative keeps textiles out of landfills by ditching synthetic material so you can easily recycle your jeans at the end of their life!

Women can choose from organic cotton underwear, specifically sustainable bras, briefs, high-rise, and thongs. Men can get organic cotton or Tencel underwear, including boxers and long johns.



A woman lying on a bed wearing a cute pair of Pact sustainable underwear.

Pact is a fair-trade company using GOTS certified organic cotton to make “Earth’s Favorite™ Clothing.” Their organic cotton underwear requires no toxic chemicals and uses 98% less water than conventional cotton.

  • Demographic: Men and women
  • Materials: Organic Cotton/Elastane
  • Perks: Get 20% off your first order, which you’ll receive in 98-100% recycled packing. You can opt for carbon-free shipping and recycle your delivery box by returning it to the company full of your old clothes for donations.


Pact is all about business-practice sustainability! They use the “Theory of Change” to drive their processes, which combines conscious consumers with mutually beneficial trade to create prosperous individuals and resilient communities.

Choose from organic cotton underwear for women (bikini, hipster, brief, boy short, and thong, plus bras and camisoles) and men (briefs, boxers, and boxer briefs).



Four women sitting and linking arms are wearing sustainable bras from Proclaim.

Made in the USA, Proclaim is headquartered in Los Angeles and proudly pays their workers fair wages in a facility that meets the strict labor requirements of California. Fascinated by Tencel Lyocell fabric, the brand uses USDA BioPreferred® Tencel, which reuses 99% of its water.

  • Demographic: Women
  • Materials: Hemp/Tencel/Spandex/Recycled Polyester
  • Perks: All packaging is made in the USA from 100% recycled materials and is also 100% recyclable.


Proclaim is known for its super-soft Tencel panties. But if you fall in love with their undies or sustainable bras that use recycled polyester, you can sleep soundly knowing you saved plastic water bottles from filling up the landfills and oceans. Yes, I know it sounds crazy, but they actually recycle water bottles to make some of their fabrics! The bottles are turned into REPREVE® recycled chips, which then become your sustainable underwear.

Women can choose from a hemp/organic cotton blend or Tencel underwear in various styles, including bras and swimwear. Proclaim offers three nude shades to accommodate a range of skin tones, plus black and some fun bright colors.



Two women sit with their backs to the camera wearing huha underwear.

Huha is an innovative underwear company selling mineral-infused undies. Huh, Huha?! Yea, that was my reaction, too. But it checks out! They infuse their Tencel underwear with zinc oxide, a mineral known for soothing the skin.

  • Demographic: Women
  • Materials: Tencel Modal Micro/Tencel Lyocell/Spandex
  • Perks: For every purchase, the company plants one mangrove tree, which they claim offsets about 185 lbs of carbon.


Tencel Modal and Lyocell fibers are made from wood pulp using oak, birch, beech, and/or eucalyptus trees, so your undies are made with plant cellulose. Plant fibers like hemp, linen, bamboo, and Tencel are far more breathable than synthetic materials.

Choose from briefs, thongs, and cheeky pairs of sustainable underwear, all infused with an inner lining featuring zinc oxide to keep you feeling fresh down there.



 A pair of Allbirds’ merino wool sustainable underwear sits on a rock.

Allbirds is a certified B Corp, which means that the environment is considered a stakeholder. They’re a 100% carbon neutral company with the bold goal of reducing their emissions in half by 2025 and to nearly zero by 2030.

  • Demographic: Men and women
  • Materials: Tencel/Merino/Wool/Spandex
  • Perks: Your orders ship using 90% post-consumer recycled cardboard.


Sustainability is at the forefront of the Allbirds brand, and they believe that better business practices can help reverse climate change. They measure the carbon footprint of each product they sell, then take initiatives to reduce and offset those emissions continuously. So you’ll know your undies were made consciously!

Women can choose from Tencel panties in briefs, boy shorts, and thongs, plus a bralette. Men have the option of boxer briefs and trunks.



A pair of Opok organic cotton underwear sits on the ground.

Using GOTS certified organic cotton, Opok specializes in men's organic cotton underwear using GOTS certified fibers and low impact dyes. While many brands focus on women’s fashion, Opok gets men interested in sustainable fashion by eyeing athletic clothing. The founders are former athletes who learned that prolonged exposure to the toxins in workout clothing has health consequences.

  • Demographic: Men
  • Materials: Organic Cotton/Elastane
  • Perks: Get 20% off your first purchase.


Opok is a play on words, combining the terms organic and epoch. The two guys behind the brand are on a mission to create non-toxic underwear and workout clothing that’s good for your body and the environment. Specifically, they focus on ditching the microplastics that leach from synthetic fabrics into waterways.  

They are beginning their sustainable underwear journey, so you can get boxer briefs in three different patterns: native, floral, and lavender polka dot.



A woman puts her earrings on while wearing a pair of Modibodi organic underwear.

Focusing on the things that make us leak (our periods, incontinence due to pregnancy and postpartum, and baby poops and pees), Modibodi created absorbent sustainable underwear. The brand has won several awards, including Wellness Awards, Glamour Power List Awards, and All-Star Bash awards.

  • Demographic: Women and babies
  • Materials: Bamboo/Organic Cotton/Spandex and Wool/Polyester/Polyamide (gusset)
  • Perks: Get 10% off your first order, which will arrive in a compostable bag in partnership with the Better Packing Company (which claims that these product bags offset carbon by 120%).


Modibodi wants to replace disposable products like tampons, pads, liners, and diapers with absorbent underwear that you can easily wash and reuse. That initiative can save a lot of plastic from the landfill. According to their website, women in the UK alone produce 200,000 tons of feminine hygiene waste per year, with each individual using over 11,000 disposable menstrual products in their lifetime. Yikes.

They use bamboo, organic cotton, and wool to build the bulk of their product, relying on some recycled synthetics to fashion absorbent gussets and diaper linings. Women can choose from eight different styles ranging in five absorbency levels.



A woman lying on a bed wears sustainable underwear from Hara.

Hara is the Hindi word for “green,” and the brand makes sustainable bras and underwear using bamboo. Their organic bamboo underwear is approved by OEKO-TEX 100 certification and uses natural dyes for bright and earthy colors.

  • Demographic: Women
  • Materials: Lyocell Bamboo/Spandex
  • Perks: Get 10% off your first order, plus rewards from referrals and purchases.


Hara makes organic bamboo underwear specifically because they understand the environmental harm that comes from traditional cotton. The company has partnered with the Earth Justice Foundation to fight the use of toxic pesticides, especially those classified as Highly Hazardous by the World Health Organization and those used in developing nations.

Women can choose from four sustainable bras (including a bandeau top and a sports bra), three styles of underwear, and one leotard.


10. A-DAM

A man sits on a bench feeding a parrot while wearing A-dam sustainable underwear.

A-dam is trying to reframe the idea of sustainable underwear and focus on “responsible” underwear, meaning being accountable to their promise of sustainability. They use GOTS-certified organic cotton for all their underwear and recycled fibers for other clothing.

  • Demographic: Men and women
  • Materials: Organic Cotton/Elastane
  • Perks: Free shipping for orders over $22 in Europe and the USA.


A-dam’s motto is “less saying, more doing,” so they really walk the sustainable walk. Their underwear features organic cotton, but they use recycled fibers from waste for some of their other clothing (like swimwear). The brand uses ocean waste like fishing nets in partnership with the ECONYL® Regeneration System and recycled polyester from plastic water bottles via Waste2Wear®.

Women can choose from several colors of bralettes and briefs, while men can opt for boxer briefs or 100% organic cotton boxer shorts. All come in several fun colors, patterns, or embroidery.



A couple cuddling in bed wearing organic underwear and clothing.

Based in Switzerland, NIKIN is the brainchild of two nature lovers who vowed to make sustainable fashion more affordable for the average person. They’ve created a compromise between affordability and sustainability, using organic cotton and planting trees to offset their environmental impact.

  • Demographic: Men
  • Materials: Organic Cotton
  • Perks: For every product sold, the company plants one tree! So far, they’ve produced one million trees.


You’re supporting a company hoping to bridge the gap between affordability and sustainability. Although this must be a compromise now, they’re always trying to find ways to better their production processes. Men can choose from three choices of boxers made with 100% organic cotton.



Four women pose while wearing knickey sustainable underwear.

Knickey is all about organic underwear, selling sustainable bras and undies made with GOTS and Oeko-Tex approved organic cotton. They’re so confident in their business practices that they publish their supply chain and annual impact report directly on their website, making it easy to do your research.

  • Demographic: Women
  • Materials: Organic Cotton/Elastane/Tencel/Recycled Nylon/Polyester
  • Perks: Free shipping on orders over $65 with the option for carbon-neutral shipping. Find the right style/fit with their discounted starter kits that feature your size in all five styles.


Not only does Knickey see the need for organic cotton underwear, but they also strive to reduce textile waste with an innovative recycling program. Instead of throwing your old undies into the trash (i.e., the landfill), send them to Knickey, where they repurpose the fabric into things like insulation and carpet padding. As a thank you, you get a free pair of sustainable underwear!

Choose from five styles of undies and four sustainable bras, all in neutral and earthy tones. And to be even more awesome, the brand is all about size diversity, so you’ll find sizes XXS through XXXL.



Two women stand under a tree wearing Y.O.U. Underwear.

Y.O.U. Underwear produces organic cotton underwear using fairtrade and GOTS-certified organic cotton. The company is PETA-approved and vegan, always striving to reduce their global emissions footprint (you can find out how they're doing by viewing their annual impact report on their website).

  • Demographic: Women and girls, as well as men
  • Materials: Organic Cotton/Elastane
  • Perks: You can help the brand make a difference in two ways. First, when you sign up for their newsletter, they plant a tree. Second, when you buy one pair of undies, they send two pairs to vulnerable women and children in the UK and several African nations.


You’ll receive your order in an organic cotton bag that you can reuse or use to send back your old underwear as part of their recycling system. Y.O.U. joined 60 other businesses in a pledge to “circular fashion,” as in keeping textile waste to a minimum.

Men can get trunks, while women can grab three underwear styles and sustainable bras in several colors and bright patterns. Girls score their first bralette in fun colors and patterns.



 Four women lying on the floor smile up at the camera while wearing sustainable underwear.

Cover your booty with Boody’s organic bamboo underwear certified by OEKO-TEX®. The brand is also certified by Ecocert, the FSC, and PETA as a vegan company. They use organic bamboo plants grown using only rainwater and practice a no-waste manufacturing process.

  • Demographic: Men and women
  • Materials: Bamboo Viscose/Bamboo Rayon/Nylon/Spandex
  • Perks: Get 15% off your first person and enjoy Boody’s “Feel Good Guarantee” campaign, which means you love your first pair or get your money back.


Although bamboo viscose requires chemicals, the company strives for sustainability in other ways, such as by reducing its fabric waste. Boody uses an approach that knits their underwear in tubes rather than the traditional cut-and-sew technique, which creates a lot of unused textiles that typically go straight to a landfill.

Women can choose from organic bamboo underwear and sustainable bras in several styles and natural colors. Men have three underwear options in darker colors like grey and black.



A woman hand sews linen underwear.

Linoto’s 100% linen underwear is the perfect example of reducing fabric waste. Although Linoto makes linen sheets and home goods, they use leftover fabric to craft super comfy unisex linen boxer shorts as part of their Zero Waste Program. Through the program, the brand strives to waste 2% or less of its fabric.

  • Demographic: Unisex
  • Materials: Linen
  • Perks: Get $20 off your first order.


Like any other linen clothing or bedding, linen underwear is soft, comfortable, breathable, and moisture-wicking. Linoto makes its products by hand in a warehouse in the USA, all started by one ambitious man named Jason. The brand’s linen underwear is pre-washed and ready to go, featuring six sizes designated by measurements and 14 different colors.  



A woman standing in a garden puts her coat on over her sustainable underwear.

Vyayama strives to replace traditional synthetic activewear for women with natural and sustainable fabrics, specifically for yoga. Along the way, however, they developed Tencel underwear. Their Tencel panties and sustainable bras come from eucalyptus plants and feature Oeko-Tex® certification with an extra stamp of approval through Oeko-Tex’s non-toxic award.

  • Demographic: Women
  • Materials: Tencel/Elastane
  • Perks: Tencel helps maintain the pH balance on your skin without using chemicals.


Vyayama makes Tencel panties and bras that help regulate your body’s temperature and wick away moisture without relying on toxic chemicals in synthetic fabrics. So you get the perks of athletic gear without the harm. Women can choose from numerous styles in lots of colors using eco-friendly dyes produced in Europe. The company makes all their products in Portugal and partners with several unions to guarantee workers’ rights.



A couple lying in bed wears sustainable underwear.

St. Basics produces underwear that’s 95% more sustainable than conventional undies and 100% free from sweat-shop labor. They want “being a saint” to be easy! So they use Tencel made from eucalyptus trees certified by the FSC using no pesticides or chemicals, which requires about 96% less water and 80% less land than conventional cotton.

  • Demographic: Men and women
  • Materials: Tencel/Elastane
  • Perks: Get 20% off your first order and 15% off future orders if you join their newsletter.


The company’s process of turning eucalyptus plants into sustainable underwear won them the EU Award for the Environment, thanks to their zero-waste initiative. The brand is vegan, PETA-approved, OEKO-TEX certified, GOTS certified, and the #1 “sustainable basics brand” on Rank A Brand for the seventh year in a row.

Men can choose from four styles in nine different colors, while women can score four types of Tencel panties in seven colors. St. Basics also sells sports bras and bralettes.


 A woman looks at herself in the mirror while trying on sustainable bras and underwear.


Sustainable clothing is all the rage these days, so you have your pick of sustainable underwear brands and sustainable fashion blogs to steer you in the right direction. Honestly, it’s never been easier to find the good stuff! Just be wary of greenwashing, research your favorite companies, and opt for sustainable fabrics and organic underwear.

Have you tried any of the brands on the list? Any favorites or ones that I missed? Drop a comment below!

translation missing: en.layout.homepage.mailing_list_join

translation missing: en.layout.homepage.mailing_list_text