The Best Organic Underwear of 2021

These eco-friendly everyday essentials are comfy classics

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The Rundown
Available in five sizes and classic shades, they’re a great choice for daily wear.
Women’s health lies at the heart of Knickey’s affordable and sustainable knickers.
Sensible and minimal, Brook There’s bikini undies offer comfort and coverage.
Thanks to bamboo’s moisture-wicking properties, the briefs are breathable.
Best Boxer:
Bhumi Boxer at Com.au
Bhumi’s (meaning ‘Mother Earth’ in Sanskrit) breezy boxer shorts are soft and relaxed.
Each Pact's GOTS-certified organic cotton lace-waist brief saves 3.9 gallons of water.
If you like the tucked-in feeling, then Botanica's high-waisted briefs are for you.
Cooling, anti-bacterial, and durable, Wama hemp thongs are stretchy and smooth.
We love that Thunderpants feature custom illustrations by creative textile designers.
We love A-dam’s adorable boxer shorts with fun patterns and curiously sophisticated names.

Underwear has skirted the periphery of the sustainable fashion universe for a long time. Fortunately, conscious versions of these unassuming, staples have slid into our drawers recently for good reason. Sustainable undies are not only stylish and comfortable to wear, but are also gentle on the environment and our bodies.

Cotton is often the underwear fabric of choice thanks to its breathability, and organic cotton has significantly less environmental impact than conventional cotton. However, keep in mind that underwear will always have a small percentage of spandex or elastane for keeping it stretchy and in good shape. Our picks below tick the right boxes when it comes to price, transparency, the environment, and your health.

Here's the best organic underwear:

Best Overall: Organic Basics Organic Cotton Briefs

Organic Basics Organic Cotton Briefs 2-Pack

Organic Basics has sustainability at its core, and makes eco-friendly essentials, underwear, and activewear that are built to last. These popular bikini-style cotton briefs are available in five sizes and in classic shades such as white and rose nude, making them a great daily wear choice.

They come with a broad, firm waist band that won’t ride up. Keeping with its commitment to the environment, Organic Basic’s breathable briefs are made from 95 percent GOTS-certified organic cotton and elastane. Save by ordering a starter pack, paired with a matching bralette or tank.

The company also makes a range of options designed for men. You can further reduce your environmental footprint by opting for carbon free shipping.

Best Budget: Knickey Mid-Rise Hipster

Knickey Mid-Rise Hipster

Women’s health lies at the heart of Knickey’s affordable, vibrant and sustainable knickers. Armed with the right credentials, the products are made from GOTS-certified cotton and are Oeko-Tex certified, made in Fairtrade factories, ensuring fair terms of trade and decent working conditions for workers. This underwear is free from harsh chemicals such as chlorine, formaldehyde and bleach.

Upgrade your undie style with pops of colors and delicious names such as Peachy Keen, Butterscotch, Beach Bum, Bon Bon, and Pomegranate. If that’s not enough, the company will even recycle your worn-out undies, converting them into insulation, rug pads, and rags. For every box of old Knickeys’ bottoms you send for recycling, you get a free new pair on your next order.

Best Cotton: Brook There Goldenrod Bikini Undie

Brook There Goldenrod Bikini Undie

Sensible and minimal, Brook There’s bikini undies offer comfort and coverage. They’re made in the United States from GOTS-certified organic cotton, with trimmings of high-quality elastic which won’t sag after a few washes.

Machine washable, the undies arrive at your doorstep in green shipping supply company Ecoenclose’s recycled poly bags and tissue paper, cutting down on new plastic packaging. While they aren’t the sexiest, they can easily become your lingerie drawer staple.

Best Brief For Men: Boody Men's Original Brief

Boody Men's Original Brief

Cooling, silky and affordable, Boody’s men’s briefs are made from bamboo viscose sourced from bamboo grown in China, along with nylon and spandex. The bamboo yarn has been certified organic by non-profit agricultural organization OCIA and is also Oeko-Tex certified as free of all nasties. Seamless, these briefs have a wide waistband and are comfortably snug.

Thanks to bamboo’s moisture wicking properties and that it is naturally hypoallergenic, the briefs are breathable and great for sensitive skins. Available in black and grey, you can buy a single brief or a pack of five.

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Best Boxer: Bhumi Boxer

Bhumi Boxer

Bhumi’s (meaning ‘Mother Earth’ in Sanskrit) breezy boxer shorts are soft and relaxed. The family-owned Australian bed, bath and basics company’s boxers are made from 95% GOTS-certified jersey cotton and recycled elastane.

Bhumi is committed to the rights of all the workers in the supply chain, working with Fairtrade factories in India. The two-pack, carbon-neutral boxer set is available in three sensible solid shades – grey, black, and blue. These roomy boxers have a broad elastic belt and a coconut button fly closure, and are perfect to lounge around at home.

Best Lace: Pact Lace-Waist Brief

Pact Lace-Waist Brief

Sustainable can be pretty too. Each Pact Apparel’s GOTS-certified organic cotton lace-waist brief saves 3.9 gallons of water and looks great to boot. Made in Fairtrade factories, the mid-rise waist with low-cut legs means wearing it for hours at a stretch will be a dream. Shrink-resistant, they're comfortable and offer plenty of coverage for your bottom.

“My go-to for sustainable undies are Pact's lace-waist briefs. They are as comfortable as they are pretty, and I love that the waistband sits smoothly on my skin and doesn't dig in. I own several pairs and plan to buy more." ~ Treehugger Senior Editor Margaret Badore

Best Brief for Women: Botanica Workshop Astra Hi-Waist Brief

Botanica Workshop Astra Hi-Waist Brief

If you like the tucked-in feeling, then Botanica Workshop’s high-waisted briefs are for you. Made from GOTs-certified organic cotton jersey with spandex for stretch, the siren-style scarlet adds oomph to your sustainable innerwear collection.

Bonus points are the comfy cotton waistband and cute vintage shell button detail on the front. Versatile, it gives full coverage under high-waisted jeans and dresses. The more you wear it, the form-fitting brief molds snugly around you. However, it is pricey, and you need to handwash it, the only downsides to this brief.

Best Thong: Wama Thong

Wama Thong

Cooling, anti-bacterial and durable, Wama Underwear’s hemp thongs are stretchy and smooth. Made from a blend of organic cotton and hemp, a high-yielding crop grown using minimal fertilisers and pesticides, sourced from China. Wama manufactures its entire collection there. The fabric has been specially processed for a buttery feel.

It has none of the scratchiness you might imagine a hemp knicker to have. On the contrary, the thongs are soft and fit well. A Peta-approved vegan company, Wama is also a Green America certified business, highlighting its dedication to creating a positive social and environmental impact. So, you can wear your thongs guilt-free.

Best Pattern: Thunderpants Originals

Thunderpants Originals

Fancy a prickly cactus, blue sloths or a glorious bloom on your derrière? We love that Thunderpants’ knickers feature custom illustrations by local textile designers such as Elana Gabrielle and Rochelle Porter, and also their New Zealand based inhouse designer Greta Menzies.

The original undies are available in sizes S to 3xl. Made from GOTS-certified organic and Fairtrade cotton and spandex, they fit just under your navel. With wide elastic bands of the same material to hold them in place, they claim to be wedgie and shift proof, close to perfection when it comes to bottoms.

Best Unisex: A-dam Boxers

A-dam Boxers

We love A-dam’s adorable boxer shorts with fun patterns and curiously sophisticated names, such as Sacha (tigers), Kris (popsicles) and Sanne (spacemen). The boxers are made from GOTS-certified organic cotton and are PETA-certified vegan.

The boxers are also certified by Ecocert, for being environmentally and socially conscious. The waistbands have a soft coating so that they don’t chafe. The boxers don't have any scratchy labels and come with nifty side slits, for you to stretch easily.

Final Verdict

Sustainable underwear is a great way to start building a sustainable wardrobe. Our top recommendation is the everyday essentials Organic Basics’ Organic Cotton Briefs (view on Organic Basics). If you’re looking for an affordable option that’s also fun, then have a look at Knickey’s Mid-Rise Hipster (view on Knickey's).

Why Trust Treehugger?

For our list, we have selected brands that have appropriate third-party certifications. These include underwear that are Oeko-Tex certified (indicating they’re free from harmful chemicals) and GOTS-certified (an organic textile standard that meets certain environmental and social criteria), as well as a few others.

Treehugger is committed to helping readers live a sustainable life by making informed choices. We’ve reviewed the best eco-friendly underwear which are gentle on the planet and your skin. Author Neeti Mehra is a luxury-industry veteran who’s also committed to sustainable, slow, and mindful living.