12 Sustainable Blazers for Women Who Mean Business

If you’re looking for a stylish yet sustainable blazer, we’re sure you’ll discover it here.

The perfect blazer has the ability to pair effortlessly with your outfit, whether workwear, formal wear, or thrown over a pair of sweats; the blazer is a vital component of every wardrobe.

We’ve researched the market for the best sustainable clothing brands creating perfect tailored blazers, boxy oversized blazers, and modern cropped blazers, ethically, so whatever your style, check out our top picks below.

Let’s jump in.

The Best Ethical and Sustainable Blazers

We’re reader-supported. If you make a purchase using our links, we may earn a commission. We only feature brands with values that align with ours.

1. Vetta

Vetta capsule wardrobe collection sustainable blazer

Sustainability: Ethically made clothing from recycled materials, including blazers created from recycled water bottles

Best for: Versatile blazers and sleeveless blazers, blazer dresses

Sizes: XS-XL

Ships to: the US only

Vetta is a sustainable fashion brand, creating versatile pieces which form part of a capsule wardrobe.

The brand’s designs allow you to wear one piece of clothing in multiple ways; for example, the Convertible Blazer (pictured) features removable sleeves to easily transition between a classic blazer and contemporary vest blazer styles.

Vetta’s clothing is made ethically in the USA in New York and Los Angeles and partner factories in India and Peru. The sustainable clothing brand focuses on using eco-friendly materials, including deadstock fabrics, Tencel, and recycled materials.

Vetta capsule wardrobe collection sustainable blazer

2. Sézane

Sézane sustainable blazers for women

Sustainability: Certified B corporation using sustainable materials including recycled fabrics, ethical and audited production

Best for: Smart, colorful blazers for women

Sizes: XS-XL

Ships to: Worldwide

Sustainable clothing brand Sézane offers a show-stopping sustainable blazer selection that features a Parisian touch. The French brand creates sophisticated blazers in playful prints and bold colors.

As a certified B Corp, the brand balances profit and sustainability, ensuring ethical production and using more sustainable materials.

Sézane ethical blazers for women

3. Filippa K

Filippa K ethical and sustainable blazers

Sustainability: Sustainable materials, responsibly sourced, high-quality clothing

Best for: Tailored blazers, wool blazers, oversized blazer, and cropped blazer styles

Sizes: XS-XL

Ships to: Worldwide

Scandinavian luxury designer Filippa K has created elegant and classic designs using high-quality, sustainable materials for almost three decades.

Filippa K has the most extensive range of tailored blazers than any other brand featured, with structured silhouettes and oversized blazer styles to compliment any outfit.

67% of the designers’ clothing is made with sustainable fibers, and the brand is working towards a circular design model through take-back schemes.

Filippa K ethical and sustainable blazers

4. Baukjen

Baukjen ethical and sustainable blazer

Sustainability: Certified B Corp, creating ethical clothing from sustainable and low-impact materials.

Best for Classic fit blazers

Sizes: UK 6-16

Ships to: the UK & International

UK sustainable fashion brand Baukjen creates ethical and sustainable styles for the eco-conscious woman.

Baukjen’s blazer selection is excellent, featuring modern styles you can throw on over a pair of jeans and also pair with matching suit trousers.

The brand is a certified B Corporation, meaning it meets strict ethical and environmental standards in its business.

Baukjen pinstripe sustainable blazer

5. Reformation

Reformation leather blazer

Sustainability: Climate-neutral certified brand creating sustainable clothing ethically from eco-friendly materials

Best for: Classic blazer styles, leather blazers, long blazers

Sizes: XS-XL

Ships to: Worldwide

Cult, cool-girl fashion brand Reformation has taken the world by storm in recent years by creating flattering, must-have clothing from eco-friendly fabrics.

Refs blazer selection features on-trend leather blazers and classic blazer styles, perfect for heading for brunch or storming the boardroom.

Reformation tailored black sustainable blazer

6. Aligne

Aligne sustainable blazer

Sustainability: Ethical and transparent sourcing, use of eco-friendly materials including organic cotton, Tencel, and recycled polyester

Best for: Oversized blazers

Sizes: UK 6-16

Ships to: the UK

If you’re looking for affordable, sustainable tailoring, check out Aligne, an upcoming sustainable fashion brand creating modern yet timeless designs from eco-friendly materials.

Aligne’s blazer collection features classically structured blazers and modern oversized blazers with a twist.

The brand has a transparent supply chain and strives to create all of its products with low-impact and sustainable materials.

Aligne leather blazer

Style Tip: Layer your sustainable blazer over a pair of organic denim jeans, and pair with a organic cotton turtle neck for a relaxed, yet sophisticated look.

7. Karen Kane

Karen Kane Ethical blazer

Sustainability: Certified B Corp, creating ethical and sustainable clothing from low-impact materials

Best for: Casual blazers, casual jacket styles

Sizes: XS-XL

Ships to: the US & International

American designer Karen Kane creates ethical clothing to make women feel beautiful and comfortable every day.

The brand uses sustainable practices such as saving water and energy in its manufacturing facilities, and switching to eco-friendly materials, including biodegradable hangers and sustainable fabrics.

Karen Kane white cotton blazer

8. Mara Hoffman

Mara Hoffman size inclusive blazer

Sustainability: Natural and eco-friendly materials, inclusive-sizing

Best for: Tailored blazer styles

Sizes: XXS-3X

Ships to: the US & International

Fashion designer Mara Hoffman perfectly pairs luxury fashion with sustainable practices.

The designer uses eco-friendly and natural materials, including hemp, organic cotton, linen, and recycled materials in its collections, to create beautiful contemporary pieces.

Mara Hoffman is transparent about its suppliers and where its clothes are made. In addition, the brand conducts regular factory visits to ensure the people who make its clothes are treated fairly, paid a fair wage, and have safe working conditions.

Mara Hoffman sustainable blazer

9. Boden

Boden pink wool sustainable blazer

Sustainability: Eco-friendly and recycled polyester materials, ethical manufacturing

Best for: Wool blazers, smart blazer styles

Sizes: UK 6-22

Ships to: the UK & International

Boden creates bold, vibrant women, men’s, and kids clothing responsibly from sustainable materials.

Its blazer selection is bursting with vibrant shades, perfect for adding a pop of color to your wardrobe.

The brand has an ethical supply chain and audits its factories to ensure they meet high ethical and sustainable production standards.

Boden classic fitted blazer

10. For Days

For Days Oversized blazer

Sustainability: Zero-waste production, recycled and organic materials, including organic cotton.

Best for: Oversized boxy blazer

Sizes: XS-XL

Ships to: the US only

On the hunt for an oversized boxy blazer? Check out the Acacia blazer from For Days. This blazer is created entirely from recycled and organic cotton, contributing to 88% less water and 62% less energy than a conventional cotton blazer.

The look is contemporary yet straightforward, perfect for layering over denim jeans with a chunky scarf.

For Days boxy blazer

11. Amour Vert

Amour Vert sustainable blazers

Sustainability: Ethically made in small batches in California using sustainable materials

Best for: Oversized blazers, slim fit blazers

Sizes: XS-XL

Ships to: the US & International

Amour Vert is an American sustainable clothing brand creating its stylish pieces in small batches in California using eco-friendly materials including Modal, Tencel, and organic cotton.

The brand has a selection of sustainable blazers to suit every occasion, from slim-fitted blazers perfect for workwear to oversized silky suit blazers for a relaxed yet sophisticated look.

The brand currently offers free US shipping and returns, plus a tote bag with every order.

Amour Vert ethical blazer

12. Outerknown

Sustainability: Ethical blazer created from recycled polyester

Best for: Slim fit blazers

Sizes: XS-XL

Ships to: the US & International

Outerknown is an American sustainable clothing brand created by pro-surfer Kelly Slater, who founded the brand with one primary purpose – sustainability.

We love the Devin blazer, which walks the line between being the perfect casual blazer and also perfect for formal occasions or workwear.

The Devin blazer is created with 75% recycled polyester from recycled plastic bottles. The blazer is in the more expensive price range but is the perfect sustainable blazer for day and night.

Wrapping Up: The Best Ethical and Sustainable Blazers

We hope you’ve found the inspiration for your next sustainable purchase. We’re sure all of the sustainable blazers featured on this list will look great on you and fit seamlessly into your eco-concious wardrobe.

If you’re looking specifically for sustainable workwear, you can read our complete guide here.

To discover more amazing brands, check out the best affordable and sustainable clothing brands, sustainable shorts, and sustainable dresses.

Please let us know if you have any feedback in the comments below.

You might also need…

Ever considered a recycled plastic handbag?

Created from recycled plastic bottles, Rothy’s sustainable handbags are the ultimate sustainable accessory.


Bethany Worthington BSc (Hons) (she/her) is the Sustainable Fashion Editor and Co-founder of Ecothes. She has a passion for the environment, and a long love of all things clothing, and combines those two interests with Ecothes. In her free time she loves dancing, hiking in the countryside, and laughing with friends.

Articles: 162

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.