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We live in cozy sweaters during the colder months — these are our favorite brands for sweaters and cardigans that are sustainable, made from natural and eco-friendly materials, and size-inclusive.

Say goodbye to nights on the boardwalk, summer sunsets, and effortless tank tops, and hello to crisp evenings, chic jackets, and most of all, cozy sweaters! While we’ll miss the warmer days, autumn invites us into cozier moments and a quieter headspace. Plus, the change in seasons gives us a chance to revamp and refine our wardrobes; we’re always looking for ways to be more mindful and intentional with our garments — blending form, function, and fair trade.

Why shop for sustainable sweaters?

Shopping for sustainable sweaters means investing in clothing that’s better for both you and the planet. Sustainable sweaters are made from natural, eco-friendly materials like organic cotton, wool, or recycled fibers, which help reduce environmental impact by avoiding harmful chemicals and conserving resources. These sweaters not only feel softer and more breathable but also tend to be more durable, so you can enjoy them for years to come without worrying about wear and tear (which is often a problem when shopping fast fashion clothing items). By opting for sustainable options, you’re supporting ethical production practices, reducing waste, and promoting a healthier planet.

It’s also important to consider size inclusivity when selecting a sustainable sweater brand. Inclusive sizing ensures that everyone, regardless of body shape or size, has access to clothing that fits well and feels great. A truly sustainable brand values diversity and designs for real people, and not just a limited range of sizes. For fall and winter this year, we’re wearing sustainable sweaters from inclusive brands that we love. These companies put people over profit while maintaining ethical, eco-conscious, and fair trade production practices. So cozy up!

Our criteria:

Our team has lived in sustainable sweaters through cool California nights and harsh New York winters. After wearing, researching, and corresponding with sustainable fashion brands for years, we’ve selected our favorite brands for sustainable sweaters and cardigans that are made of natural and eco-friendly materials and size-inclusive, too. We regularly update this list with new favorites that meet the following criteria.

  • SUSTAINABLE | From sourcing materials, to thoughtful production and labor practices, to low-waste manufacturing, these brands are all sustainable and have the credentials and certifications to back it up.
  • NATURAL/ECO-FRIENDLY | The materials used in these sweaters are all natural and/or eco-friendly and engineered to keep you warm and comfortable.
  • SIZE INCLUSIVE | We’ve included brands that offer a large range of sizes so there’s something here for everyone.

For full fall fashion, pair them with some ethical denim, and sustainable purses and boots. 👢


Best Overall | Most Affordable | Best Cardigans


1. Sézane

B corp
FSC
GOTS certified
Gives back
Natural materials
OEKO-TEX® certified
Recycled materials
Size inclusive

Best For | Colorful & patterned knitwear
Size Range
 | Women’s XXS – XXXL, men’s XS – XXXL
Price Range | $120 – $195

Based in Paris, Sézane is designed to last. With more than two-thirds of its pieces produced in Europe, and the rest crafted by long-standing partner ateliers in India, Portugal, and more, Sézane prioritizes raw materials and sustainable practices. Its super-soft Lauren Jumper features a high collar and a stunning green shade for a cozy, lived-in look.

Our Editor’s Review | “It was love at first sight but I was afraid it wouldn’t last. Now after wearing Sézane, I know my feelings are deep and true, J’aime. Each of these pieces will be a lasting heirloom I hold onto for years to come. Not only because of their timeless style but their quality.” – Courtney Jay Higgins, Contributing Editor [Read our full review.]


2. Everlane

Eco friendly packaging
GOTS certified
Natural materials
OEKO-TEX® certified
Recycled materials
Size inclusive

Best For | Sweaters for work
Size Range
 | Women’s XXS – XXXL, men’s XS – XXL
Price Range | $98 – $198

Everlane carries our favorite work styles so you can look put together and feel your best, in and out of the office! Whether you’re into crewnecks, cardigans, v-necks, or turtlenecks, Everlane’s extensive sweater collection has you covered. Made from renewable and clean materials (with animal welfare in mind), each product page provides you with details on each sweater’s journey from source to end. Our favorite piece is the Cocoon Crew made from RAS-certified alpaca fiber and RWS-certified wool.

Customer Review | “I love the weight and quality of the material. It is soft & warm without being too heavy.” – Whitney M. (Read all reviews.)


3. NAADAM

Biodegradable
Eco friendly packaging
Natural materials
Recycled materials
Size inclusive

Best For | Cashmere sweaters
Size Range
 | Women’s XXS – 5X, men’s XXS – XXL
Price Range | $78 – $475

When it comes to sustainable clothing, we have to take into account a brand’s treatment of people, animals, and the planet. And NAADAM promises the “world’s fairest cashmere.” Sourced from Mongolia’s Gobi Desert, the company works directly with herders and provides hand-combing and veterinary care to its animals. This ensures their care and that you get the softest, most sustainable fabric — like its popular Original Cashmere Sweater, available in nine core colors and limited edition shades too. Be sure to read our review of these cozy and effortless cashmere picks! 

Our Editor’s Review | “All in all, my husband and I felt that, while we would not be able to pay retail for these prices, NAADAM’s sweaters are definitely staple pieces that will last for winters to come. Most importantly, they are fashionable and comfortable enough that we’ll enjoy wearing them each year.” – Henah Velez, Contributing Editor [Read our full review.]


4. Pact

Biodegradable
Budget friendly
Eco friendly packaging
Fair trade
GOTS certified
Natural materials
Size inclusive

Best For | Organic cotton sweaters & cardigans
Size Range
 | Women’s XS – 3XL, men’s S – XL
Price Range | $58 – $88

For airy and breathable sweaters and cardigans, check out Pact. Made with GOTS-certified organic cotton that’s free of pilling and safe for the skin, each Pact piece is made to be better for us and even better for the planet. In addition to no harmful chemicals, Pact’s organic cotton clothing uses 81% less water than conventional cotton and is crafted in their Fair Trade factories. (P.S. It’s affordable too!) Check out the 4.6-star rated Classic Fine Knit Relaxed Sweater as a cute and comfy addition to your closet. 

Our Editor’s Review | “I love Pact’s organic, lightweight sweaters for the transition between summer and fall. They’re simple enough to slot into any wardrobe easily — but with stellar construction that’s garnered compliments and ensures they’ll last year after year.” – Ashley D’Arcy, Senior Editor


5. Quince

Budget friendly
Eco friendly packaging
GOTS certified
Natural materials
OEKO-TEX® certified
Plastic/Pfas free

Best For | Affordable sweaters
Size Range
 | Women’s XS – XL, men’s XS – XXL
Price Range | $40 – $150

Quince is all about impeccable quality clothing at a lower price. The brand makes premium clothing in classic designs while adhering to its values of sustainability, ethical manufacturing, and affordability through its factory-direct model. The proof is in their prices with the Organic Cotton Fisherman Sweater running you about $50 while the Lightweight Cotton Cashmere Crew is just under $30. Fashion-forward, budget-friendly, and beautiful.

Our Editor’s Review | “This is one of those pieces I want to wear every day. A closet staple! I love the balloon sleeves, big buttons, buttery soft wool, and slight cropped-boxy fit. It adds a touch of sophistication to any look, whether running errands or going out to eat.” – Courtney Jay Higgins, Contributing Editor [Read our full review.]


6. Outerknown

Fair trade
GOTS certified
Natural materials
Recycled materials

Best For | Polo sweaters
Size Range
 | Women’s XXS – XXL, men’s XS – XXXL
Price Range | $118 – $398

Founded by World Champion surfer Kelly Slater and designer John Moore, Outerknown is on a mission to create sustainable clothing that lasts. And that includes the Roma Sweater. Made from 70% organic cotton and 30% recycled cashmere, this sweater features a plush, relaxed fit and ribbed detailing for an ultra-cozy vibe. Offset it with some fitted jeans or keep it casual with a pair of loose pants.

Customer Review | “What surprised me most about this sweater is the softness! I just love the feel and weight of it. It’s my go-to sweater this season. I normally wear a M and based on reviews I ordered a S, and it fits perfectly.” – Sarah D. (Read all reviews.)


7. Reformation

American made
Climate neutral
Eco friendly packaging
Gives back
Natural materials
Recycled materials
Size inclusive
Woman owned

Best For | Chic sweaters & cardigans
Size Range
 | Women’s XS – 3X 
Price Range | $88 – $398

Reformation is often touted as a leader in the sustainable fashion industry. Ethically made in China and the USA, the team seamlessly transforms responsibly sourced materials like Tencel, linen, and recycled cotton into chic styles. And the brand’s eco-friendly methods are shared directly with consumers, who can view how much water and carbon dioxide was saved in the production of their pieces. The Nalini Cotton Sweater Tank is equal parts sexy and snug and perfect for layering.


8. MATE the Label

1% for the planet
American made
B corp
Circular fashion
Climate neutral
GOTS certified
Natural materials
Size inclusive
Woman owned

Best For | Casual sweatshirts
Size Range
 | Women’s XS – 3X 
Price Range | $215 – $265

MATE the Label creates essentials using non-toxic, natural, and organic materials, with a mission to keep products clean from seed to skin. Committed to sustainability, the brand emphasizes ethical production, plastic-free packaging, and circular fashion, all while being women-centered and holding certifications like Climate Neutral and GOTS. As for their sweaters, our editor loves how well they hold up after multiple washes! If you’re ready to invest, MATE’s Organic Fleece Half-Zip Sweatshirt won’t disappoint.  

Our Editor’s Review | “Obsessed is an understatement for how I feel about this sweatshirt. While I’ve generally gravitated towards crewnecks in the past, I feel like I’ve entered my pullover sweatshirt era — ever since finding a Reformation half-zip in a thrift store last winter. As soon as I unwrapped the half-zip, I put it on and was transported to my teenage years (remember the soft interior fleece of sports/choir hoodies before you washed them?). The main difference is that the MATE sweatshirt is GOTS Certified Organic fleece and stays soft and cozy, even after washing.” – Kayti Christian, Senior Content Strategist [Read our full review.]


9. Jenni Kayne

Eco friendly packaging
Gives back
Natural materials
Recycled materials
Size inclusive
Woman owned

Best For | Timeless Californian styles
Size Range
 | Women’s XS – 3X 
Price Range | $195 – $695

Breathtaking styles and timeless elegance can be seen throughout Jenni Kayne’s sweater collection. Since its founding, the brand has prioritized natural fibers, local production, and fair working conditions, introducing collections made from recycled polyamide, cashmere, alpaca, and yak fibers. Elevate your closet with the Cooper Cardigan — a perfect everyday staple piece. 

Our Editor’s Review | “I think Jenni Kayne is the perfect brand for transitioning to investment pieces since they are durable, thoughtfully designed, and wear well through many seasons. (California girls know how to navigate fluctuating temps best!) If you’re ready to ditch your dog-walking or office sweatshirt for the luxe alternative, Jenni Kayne’s ready and waiting.” – Ashley D’Arcy, Senior Editor [Read our full review.]


10. Girlfriend Collective

Budget friendly
Eco friendly packaging
Family owned
Gives back
Natural materials
OEKO-TEX® certified
Recycled materials
Size inclusive

Best For | Athleisure wear
Size Range
 | Women’s XXS – 6XL 
Price Range | $78 – $88

Girlfriend Collective is dedicated to sustainability, using recycled materials like post-consumer water bottles and fishing nets to create eco-friendly clothing essentials. The brand emphasizes transparency, fair wages, and wellness in all shapes and sizes — including their impressive size range that goes up to 6XL! A customer favorite, their 50/50 Cropped Sweatshirt has over 1,329 5-star reviews and is made with both recycled materials and organic cotton. Pair it with their Classic Joggers for a matching set! 

Customer Review | “I wore this beach camping recently and it is so cozy and kept me warm from the wind, I love it! The shorter length is perfect for the high waisted girlfriend leggings too. I knew I already loved the 50/50 range because I have the sweats/joggers and am obsessed with them for lounging. Recently got this sweatshirt and the sweat shorts and am just as happy with them. The small fits great, I’m 5’6 and wear a small in their bras and leggings too.” – Kelsey G. (Read all reviews.)


11. Cuyana

FSC
GOTS certified
Natural materials
OEKO-TEX® certified
Recycled materials
Woman owned

Best For | Alpaca wool sweaters
Size Range
 | Women’s XS – XL
Price Range | $228 – $328

Cuyana believes in “fewer, better.” This means the company responsibly produces its clothes, maximizes their wear through warranties and repair, and facilitates donating and reselling the pieces once you’ve loved them long enough. Cuyana intentionally selects factories that are near the source, so it can craft clothing with Pima cotton from Peru and silk from China. The Single Origin Cashmere Wrap Sweater features traceable and sustainable Italian cashmere which is sewn together in a sustainable Italian mill.

Customer Review | “Love this sweater. Great color and fit.” – Mary H. (Read all reviews.)


12. Kotn

B corp
Biodegradable
Budget friendly
Eco friendly packaging
GOTS certified
Gives back
Natural materials
OEKO-TEX® certified
Plastic/Pfas free

Best For | Casual sweaters
Size Range
 | Women’s XS – XL, men’s XS – XL
Price Range | $88 – $198

Ethically made in Portugal and Egypt, Kotn’s knitwear is made for everyday wear. This certified B Corp commits to building a lasting business model through their supply chain. From the sustainable cultivation of raw materials in Nile Delta, Egypt all the way to the final construction of each product, Kotn remains attentive through each stage of the process while supporting Nile Delta’s local community needs. For a refined and relaxed knit combo, the Aswan Turtleneck is one to add to the list. 

Customer Review | “This is a beautiful and unique sweater. There are so many things to love about it. The fiber is soft against the skin and it’s ethically sourced. The color is gorgeous and rich, I really love the contrast of the warm golden yellow striping against the teal-ish marine blue. The design is very unique with bell like sleeves and side slits. One of the things I love the best is that the turtleneck part is just right. There isn’t so much fabric that I feel crowded. It’s just perfect. I’m considering buying the black one even though I don’t wear a lot of black because the sweater is so nice. Worth the money spent. Quality piece. Thanks Kotn!” – Melissa J. (Read all reviews.)


13. Shaina Mote

GOTS certified
Natural materials
Plastic/Pfas free
Recycled materials
Woman owned

Best For | Knitwear for all seasons
Size Range
 | Women’s XS – XXL  
Price Range | $240 – $497

Shaina Mote approaches their sustainable business model by keeping teams small and production local. Their knitwear is made in a local woman-owned Peruvian workshop that works directly with local artisans. All craftspeople are paid fair wages in advance and the brand maintains strong relationships with their partners while honoring the heritage traditions of knitwear production in Peru. Stay warm during the cool weather with the Crop Chunky Crewneck sweater. 


14. Buck Mason

American made
Natural materials
Recycled materials

Best For | Men’s classic sweaters
Size Range
 | Women’s XS – XXL, men’s XS – XXL  
Price Range | $148 – $298

For modern American classics rooted in timelessness, quality, and California spirit, check out Buck Mason. Founded in 2013 in Venice, California, the brand combines old-school craftsmanship with modern technology to produce durable, well-designed wardrobe essentials, while committing to fair working conditions and equitable pay. (Psst — you can’t get more classic than this Wool Hemp Traveller Polo in vintage Heather Grey!)


15. The Knotty Ones

Biodegradable
Climate neutral
Handcrafted
Natural materials
OEKO-TEX® certified
Small business
Woman owned

Best For | Sweaters made with natural & biodegradable yarns
Size Range
 | Women’s XS – XL  
Price Range | $198 – $574

The Knotty Ones is a sustainable knitwear brand founded by three Lithuanian friends, celebrating Baltic heritage through timeless, handcrafted designs. The brand empowers female artisans in rural Lithuania by providing fair wages and ethical working conditions, while using biodegradable, natural materials throughout their garments. Our favorite handmade piece — the Barbora Wool Turtleneck — features adorable contrasting stitching making it your go-to knit for cool fall evenings. 

Customer Review | “Thank you, Mrs Zina and Jurgita, for knitting my amazing sweater! I didn’t want to take it off when I tried it on. Really beautiful in person. I got it in black and it’s a true deep black. The knit pattern is stunning. Hits right at my hips, long enough for my long arms, and easy to fold back the cuffs. I will cherish this sweater and look forward to buying more!” – Michele (Read all reviews.)


Featured image is by Courtney Jay Higgins with sweater by Sézane.