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Grown without toxic pesticides, fertilizers, or GMOs—all of which are proven to harm the environment, farmers, and producers—organic cotton is a healthier, more eco-conscious alternative to non-organic textile materials.

Organic cotton is healthier for consumers, too. Exposure to pesticides can cause a range of health issues—from headaches and nausea to long-term chronic illnesses including cancer, reproductive damage, and endocrine disruption. Wearing organic cotton clothing is preferred for our wellness.

We’ve taken a close look at the best sustainable brands curating organic clothing collections and compiled a list of our favorites. From the shores of Santa Cruz to the mountains of Colorado to the hills of the UK, here are the best fashion brands for sustainable and ethically produced organic apparel.

1. Pact

Best For | Affordable fair trade adult basics
Based In | Boulder, CO
Price Range | $–$$
Size Range | XS–2X

Pact is committed to creating clothes that make the world a better place. The socially conscious company goes to great lengths to ensure its entire supply chain—from the growing and harvesting of organic cotton to the final sewing of garments—is as clean and responsible as possible. And because it ships internationally, you can shop Pact from anywhere for its super-soft tees, dresses, and underwear made with pesticide-free organic cotton. BRB, going to shop.

2. MATE the Label

Best For | Adult essentials made in the USA
Based In | Los Angeles, CA
Price Range | $$
Size Range | XS–3X

From tees and tanks to shorts and sweatshirts, MATE the Label only uses natural and nontoxic materials when crafting its apparel, like low-impact dyes, certified organic cotton, and Tencel. The company keeps its carbon footprint small too as its factory is 17 miles from its headquarters, meaning all pieces are sewn, dyed, and shipped from LA. The packaging is entirely made from recycled materials, and there’s a recycling program in place for old pieces. If you want comfy classics in bold yet inviting colors, look no further than MATE.

3. Organic Basics

Best For | Adult underwear & tanks
Based In | Copenhagen, Denmark
Price Range | $$–$$$
Size Range | XS–XL

Certified B Corp Organic Basics is all about eco-friendly essentials that will last, including adult undergarments, basic tees and tanks, and cozy leggings. Born out of Denmark in 2015 (but available to ship worldwide), these sustainable basics are not only ethical but are also low on waste and impact. These are perfect if you’re on the go, especially because the odorless SilverTech™ keeps you fresh wear after wear. Our kind of basics.

4. For Days

Best For | Zero-waste basics
Based In | Los Angeles, CA
Price Range | $–$$$
Size Range | XS–XXL

95 percent of used clothing that’s thrown away can be reused or recycled—so For Days is doing just that. This sustainable brand works with organic cotton (and recycled terry) to create gender-inclusive basics that can be returned for store credit and recycled into new pieces. Not only are they zero waste and affordable, but they’re pretty chic, too—the collection includes ribbed crops, flowing midis, rompers, and even ’90s-inspired vintage tees. The ROI on this organic brand is almost too good to pass up.

5. WVN

Best For | Women’s dresses & skirts
Based In | Santa Cruz, CA
Price Range | $$–$$$$
Size Range | XS–XL

WVN, formerly known as Synergy Organic Clothing, is committed to using GOTS certified organic cotton from farmers who are well paid and work under healthy conditions. This commitment goes up the supply chain, too—from the weavers to the people who package the garments in boxes, WVN ensures that everyone has a safe, healthy, and fair trade work environment. This certified B Corp offers international shipping so you can wear these styles no matter where you live.

6. Outerknown

Best For | Organic outerwear for adults
Based In | Culver City, CA
Price Range | $$–$$$
Size Range | XS–XL

Started by professional surfer Kelly Slater, Outerknown wants you to experience the great outdoors—while also protecting it. OK champions sustainable and organic materials, fair labor, and the circular economy (and aims to make 100 percent of its products circular by 2030!). If you’re not sure where to start, check out OK Ten, the brand’s best-selling pieces including a no-fuss jumpsuit, layering flannel, and a blanket shirt jacket. They’re cozy, conscious, and curated for outside adventures.

7. Fair Indigo

Best For | Adult organic basics that last
Based In | Madison, WI & Peru
Price Range | $–$$
Size Range | XS–XL

Fair Indigo, a Wisconsin-based brand working with artisans in Peru, creates quality organic clothing—the Forever Organic Tees last upwards of five years. Every item in this adult apparel line is made with organic Peruvian Pima cotton and earth-friendly dyes. Moreover, the brand gives back to local communities in Peru by funding education opportunities for children. Shop for adult organic basics, athleisure, and more. Oh, and don’t miss the adorable Joobles collection—organic stuffed animals hand knitted by artisans!

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8. Thought

Best For | Women’s workwear
Based In | London, UK
Price Range | ££–£££
Size Range | UK 6–20 (US 2–16)

Thought is a natural clothing company with a simple philosophy—to design and make beautiful, timeless fashion while caring for our environment. The UK brand sells organic cotton, bamboo, hemp clothing for adults that are all available to ship internationally. Thought ensures ethical working conditions and fair wages for its employees and has developed long-lasting relationships with its factories and suppliers. We love the workwear-ready dresses and tops!

9. Brook There

Best For | Women’s undergarments
Based In | Maine & Massachusetts
Price Range | $–$$
Size Range | 32AB–38CD; XS–XXL

Brook There is a thoughtful apparel brand for everyday undergarments and minimalist basics. The durable and super-soft lingerie is designed, cut, and sewn in the USA from GOTS certified organic cotton, including some sets with gorgeous silk trims. It’s all shipped in eco-friendly packaging which avoids single-use plastic. If you’re looking for sustainable lingerie that is good for you and the planet, shop here.

10. Back Beat Co.

Best For | California-inspired casual wear
Based In | Los Angeles, CA
Price Range | $–$$$
Size Range | XS–XXL

Back Beat Co. prioritizes people and the planet first, then profit. Based in and inspired by California, the company creates cool, comfy basics for the everyday laid-back lifestyle. Think tees, sweatshirts, jumpsuits, jackets, and more. It uses low-impact fabrics including hemp, organic and recycled cotton, and tree pulp-derived Tencel, and also ships its clothing in plastic-free packaging. A nod to the state’s surf and skate culture, you won’t help but feel relaxed in these pieces.

11. Cleobella

Best For | Women’s dresses, skirts, & sets
Based In | Huntington Beach, CA
Price Range | $$$$
Size Range | XS–XL

Cleobella crafts pieces that are globally inspired and ethically handmade, using GOTS certified organic cotton, OEKO-TEX certified labels, natural buttons, and even nontoxic dyes. Working with artisans in India, Bali, and across Southeast Asia, the team upholds longstanding cultural techniques like block-printing and weaving into its work, and the results are stunning. For luxury-inspired fits, bright and rich colors, and patterned sets, you can’t go wrong with Cleobella’s organic outfits.

12. Harvest & Mill

Best For | Adult loungewear, socks
Based In | Berkeley, CA
Price Range | $$
Size Range | S–XL

Harvest & Mill has spent the last decade building a truly sustainable brand. Based in Berkeley, the brand uses only organic cotton grown in the US for its apparel, which are each sewn in the Bay Area. That means its production has significantly fewer emissions, less energy and water use, and a shorter supply chain. The pieces themselves are perfect for lazy weekends and WFH days—from organic joggers and sweatshirts for your desk to naturally dyed socks to snuggle up in on the couch. Organic, carbon-neutral, and an investment in American labor.

13. Kowtow

Best For | Women’s knitwear & tops
Based In | New Zealand
Price Range | $$$$ (NZ$)
Size Range | XXS–XL

With Fair Trade Certified cotton fabrics and SA8000 certified ethical working conditions for employees, Kowtow is a high-quality fashion brand you can feel proud to wear. Kowtow never uses GMOs, retains water efficiently, and conserves soil through crop rotation, creating an earth-friendly model for production. Plus, the brand ships in eco-friendly packaging and has a take-back program for circularity. With two stores in New Zealand, Kowtow offers multi-regional shopping (and shipping)!

14. Beaumont Organic

Best For | Contemporary women’s wear
Based In | UK
Price Range | ££££
Size Range | XS–L

Beaumont Organic specializes in luxury casual pieces, most of which are made from 100 percent GOTS certified organic cotton. The brand works exclusively with factories that are within the EU, pays fair wages, and provides excellent working conditions for staff. Beaumont Organic introduces two collections a year (as well as a pre-loved collection with discounted prices). It also delivers worldwide in recyclable packaging, with free local shipping on orders over £75.

15. Bibico

Best For | Women’s knitwear
Based In | UK
Price Range | ££
Size Range | S–L; UK 8–16

Bibico, a UK apparel brand, creates fuss-free, well-made garments with 100 percent natural materials. With a back-to-basics and slow fashion approach, this brand focuses on creating timeless, organic pieces. We especially love the oversized shirt dresses and cozy knitwear. Bibico partners with women’s coops that are certified by the World Fair Trade Organization. Order from anywhere in the world!

Featured image from Harvest & Mill