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Flannel shirts aren’t just a fall trend. The style transcends seasons, and it’s easy to see why: These shirts are effortlessly cool, rugged, and comfortable. Flannels work anytime, anyplace. 

That’s why we’re stocking up on sustainable flannel shirts from our favorite brands. These shirts are created with eco-friendly materials like organic cotton and recycled materials. Consider this shirt a sustainable staple for your wardrobe and a perfect pairing with your favorite American-made denim and ethical boots


1. Outerknown

American made
Fair trade
GOTS certified
Natural materials

Sustainable Materials | 100 percent organic cotton
Size Range | XS–XXL
Price Range | $128–$168

Heading outdoors soon? Check out Outerknown’s flannels, which are sewn in safe, fair working conditions, sourced from eco-friendly or recycled materials, and are made to last. The Blanket Shirt flannel, in particular, is the perfect athleisure or hiking top, designed with a relaxed fit and coastal vibe. There’s a reason Outerknown’s flannels are best-sellers, with hundreds of positive reviews.


2. United By Blue

B corp
Budget friendly
FSC
Natural materials
Recycled materials

Sustainable Materials | OCS-certified organic cotton & recycled polyester
Size Range | XS–XL
Price Range | $59.99–$98

United by Blue, a sustainable and ethical apparel brand for all genders, removes a pound of trash for every product sold—and to date, they’ve removed nearly 3.5 million pounds of waste. As a certified B Corp, the brand also has a zero-plastic policy and works with only eco-friendly materials, such as hemp and Modal. We love the super soft Responsible Flannel. It’s a cozy essential you’ll never want to take off.


3. Patagonia

1% for the planet
B corp
Fair trade
Natural materials
Recycled materials

Sustainable Materials | Organic cotton
Size Range | XS–XXL
Price Range | $89–$189

Patagonia, a long-time sustainability leader, invites you to adventure and explore outside this season. The brand offers sustainable flannel shirts with dozens of color options and sizes up to XXL, and each one is ethically made with organic cotton. As the first certified B Corp in California, Patagonia donates one percent of proceeds to environmental initiatives worldwide, so we can both admire and preserve nature.


4. tentree

B corp
Budget friendly
Climate neutral
Fair trade
Plant trees
Recycled materials

Sustainable Materials | Organic cotton
Size Range | XS–XXL
Price Range | $58.80–$108

This certified B Corp puts the Earth first; tentree plants 10 trees with every purchase with more than 48,000,000 already rooted worldwide. (You can track your impact to see where your trees have been planted.) Here you’ll find sustainable flannels for all genders, which are thoughtfully designed in Canada and ethically made in China. In the process, over 300 liters of water are saved per shirt. 


5. Everlane

Budget friendly
GOTS certified
Natural materials
OEKO-TEX® certified
Recycled materials

Sustainable Materials | 100 percent cotton
Size Range | XS–XXL
Price Range | $90

For the minimalist at heart, Everlane’s collection of single tone and classic flannel shirts are an essential staple piece for your wardrobe. Made from 100% cotton, these versatile flannels are not only flattering but are made for all season wear so you’ll never want to take them off. Choose from brushed, boxy and classic fit options. 


6. Toad & Co

1% for the planet
FSC
Natural materials
OEKO-TEX® certified
Plastic/Pfas free
Recycled materials
Vegan
Woman owned

Sustainable Materials | Recycled cotton & polyester
Size Range | XS–XXL
Price Range | $78–$130

Toad & Co is redefining what it means to be sustainable. The team takes recycled cotton and old plastic water bottles and turns them into innovative fabrics like “Re-Form twill”—the same material used in the brand’s cozy flannels. A portion of your order will also benefit 1% for the Planet, investing in environmental causes.


7. Frank & Oak

B corp
Budget friendly
GOTS certified
Natural materials
Recycled materials

Sustainable Materials | Organic cotton & recycled buttons
Size Range | XS–XXL
Price Range | $89.50

Frank & Oak makes quality basics at affordable prices, so it’s no feat they’ve crafted the perfect cozy flannel. Layer their waffle knit shirt with a casual tee for a smart look that’ll have heads turning. Sustainability is no afterthought with packaging and mailers made using eco-friendly processes. You’ll receive your order in a compostable polybag made with all recycled materials. 


Featured image is from Outerknown