Gray stuffy synthetic office attire? Lighten things up for yourself and the planet by sporting a sustainable suit to your next board meeting instead.
Thanks to these makers of eco-friendly or organic suits, you can be cubicle-comfortable on days other than Casual Friday—and help the planet stay that way, too.
And thanks to our new Brand Rating System, we’re picking out the boardroom best. In coming months, rolling out this system means we’ll reexamine brands across a more in-depth 22-point system that includes things like circularity, customer reviews, and diversity. Read more on it here.
We independently research all featured brands and we ask them to confirm their claims. In many cases we personally review recommended products. This post contains affiliate links which means we may earn a commission if you buy something. Learn more here.
The Most Sustainable Suits For The Planet Pro(Fressional)
Eileen Fisher’s catalog of workwear made from cotton, recycled polyester, and bluesign® approved fabrics will have you turning heads at the next all-hands meeting.
Bastet Noir allows you to send measurements for custom-made, bespoke women’s suits—cutting out excess fabric and waste.
Index: Eco-Friendly Suit Brands
- Ministry Of Supply Jump to brand
- Filippa K Jump to brand
- Eileen Fisher Jump to brand
- Moss Jump to brand
- Mantaikotai Jump to brand
- Bastet Noir Jump to brand
- Hangrr Jump to brand
Ministry Of Supply
About Ministry of Supply
Price Range: $94–$498
Ministry of Supply lives and breathes “workleisure”. They offer everything you need to conquer the office (and everywhere else) in style, including women’s and men’s sustainable suits, blazers, pants, button-ups, tees, sweaters, and accessories.
Everything is designed for hypermobility and comfort, but the Velocity Merino Suit Jacket is one of their most sustainable options, with 49% merino wool in this partially organic men’s suit.
Ministry of Supply’s Ethical & Sustainability Practices
Materials:
Vegan materials include merino wool and semi-synthetics like S.Cafe (made from recycled coffee grounds!) and bio-based polyester derived from corn and sugar cane. These are combined with GRS-certified recycled polyester and nylon, and PFC-free sustainable water repellents.
Unfortunately, some options include significant portions of virgin synthetics and viscose, so try to avoid them if possible, but at least all fabric mills bear bluesign® and/or OEKO-TEX certification.
Supply chain & labor practices:
MoS makes suits in factories across Japan, Taiwan, China, and the United States. They visit each WRAP and/or BSCI facility regularly.
Carbon commitments & green practices:
Each design undergoes rigorous ASTM and AATCC durability testing to ensure their products are built to last. You can also return unwanted or old products for resale or recycling into new fabric via Shinkong Textiles.
As a Climate Neutral Certified brand, MoS reduces its carbon footprint through solar-powered mills, sea-freight shipping, and CO2 waterless dyeing. Packaging consists of recycled cardboard and compostable poly bags.
Inclusivity:
For sustainable blazers, men’s sizes range from XS-XXXL and women’s XXS-XXXL. Men’s pants are available 28”–40″ and women’s in sizes 0–18.
Community & charitable giving:
Working with the Mbadika STEM non-profit, MoS helps fund an at-home program teaching kids about science-based product development. They donate gently worn garments to career-readiness programs through their 1 In, 1 Out Program.
Filippa K
About Filippa K
Price Range: $470–$2,080
Filippa K delivers fresh, professional, eco-friendly suits for men and women alike.
Their catalog of sustainable work clothing includes blazers, suit jackets, dresses, skirts, tops, outerwear, trousers, and accessories. The Sasha Cool Wool Blazer is made from natural or recycled materials, and its fabric mill runs on solar energy and recycles water.
Filippa K’s Ethical & Sustainability Practices
Materials:
Most suits feature a mulesing-free ethical wool or GOTS-certified organic cotton outer body. They’re then lined with recycled polyester from plastic bottles and Enka viscose, locally made using Swedish tree pulp.
Supply chain & labor practices:
Clicking on any Filippa K item displays the country and the factory in which it was made. They also hold GOTS and OCS certifications and are members of the Fair Wear Foundation and the Sustainable Apparel Coalition.
Carbon commitments & green practices:
100% of Filippa K styles are fully traceable and the brands plans to reduce emissions by 50% before achieving carbon neutrality by 2050. They’re switching shipment materials to uncoated FSC-certified paper and recycled boxes.
Inclusivity:
UK chest/bust sizes 44–56 are available for men and 30–42 for women.
Community & charitable giving:
Filippa K works with organizations like WaterAid to improve access to safe water, sanitation, and hygiene in poor communities. They also support the Swedish Society for Nature Conservation’s nature protection efforts.
Eileen Fisher
About Eileen Fisher
Price Range: $178–$448
Eileen Fisher will keep you comfortably professional in their sustainable women’s suits. Any one of their blazers will do, but the relaxed, boxy-fit Linen Stand Collar Jacket will keep you comfortable from 9 to 5.
They also offer sweaters, jackets, pants, jumpsuits, dresses, and accessories that can be worn in and out of the office.
Eileen Fisher’s Ethical & Sustainability Practices
Materials:
EF’s most eco suits are made of “Cotton Blend Ponte,” a wrinkle-resistant blend of organic cotton, recycled polyester, and a touch of elastane. Others in their workwear collection feature 100% silk, a viscose/silk blend, or a TENCEL™ lyocell/nylon blend—most of which are bluesign® approved.
Supply chain & labor practices:
Eileen Fisher is a Certified B Corp member of the Fair Labor Association (FLA) and Fair Factories Clearinghouse.All manufacturing partners are SA8000 compliant and adhere to the ETI ethical manufacturing base code.
Carbon commitments & green practices:
EF’s Waste No More take-back program converts returned/recycled items into new products. Eileen Fisher also uses renewable energy carbon offsets and is incorporating more regenerative-grown fabrics into future lines.
Inclusivity:
Suits are available XXS-3X.
Community & charitable giving:
The brand provides grants for Women in Environmental Justice, contributing millions to countless women across the globe. The Eileen Fisher Foundation supports systemic changes impacting women and girls worldwide.
Moss
About Moss
Price Range: $458–$798
Moss creates ethical and sustainable men’s suits and other corporate dress code essentials you need to ace an interview.
The Moss Bros Eco Suit line—like this Tailored Fit suit—offers well-tailored organic business suits constructed from 100% linen. Otherwise, shop classic styles of sustainable tuxedos, tweed suits, kids’ suits, and more.
Moss’s Ethical & Sustainability Practices
Materials:
These ethical men’s suits use organic cotton, recycled polyester, TENCEL™, linen, wool, and some BCI cotton.
Supply chain & labor practices:
Moss works with suppliers and WRAP-certified factories worldwide (like China, India, Portugal, and Turkey). They conduct regular audits to ensure partners meet their standards regarding living wage payments, fair working conditions, and respect for employees.
They further promote workers’ rights through the Sustainable Apparel Coalition and ETI memberships.
Carbon commitments & green practices:
If you’re seeking sustainable wedding suits or one for another rare occasion, consider their Moss Hire rental program. It allows customers to wear premium pieces at a fraction of the cost.
Inclusivity:
In Moss Bros sustainable suits, men’s sizes run 34–54. Matching pants can be purchased in sizes between 28”–48”.
Community & charitable giving:
For this London-based ethical suit brand, UK charities are close to heart, including The Prince’s Trust, The Royal Marsden Cancer Charity, and Prostate Cancer UK.
Mantaikotai
About Mantaikotai
Price Range: $133–$222
Lithuanian brand Mantaikotai makes some of the natural fiber suits in more colors than black, brown, and gray. Their catalog includes unique blazers, jumpsuits, skirts, tops, bottoms, and knit garments.
The Milan Suit comes in everything from mustard to forest green. Its 100% softened Lithuanian linen body provides perfect “laid-back Tech-CEO vibes”.
Mantaikotai’s Ethical & Sustainability Practices
Materials:
Mantaikotai specializes in OEKO-TEX certified 100% organic linen suits. Some other styles feature an 80-90% wool and polyester or silk outer with a viscose lining—but since we’re not a fan of polyester, silk, or viscose, we suggest avoiding these.
Supply chain & labor practices:
Each item is handcrafted and uses materials sourced locally in Vilnius. Owner Lina does all the sewing, her husband Justas manages the shop, and her mother Laima handles any knitting. Embodying slow fashion, each item takes around one month to produce.
Inclusivity:
Preset sizes run XS-XL, but they also offer ethical custom suits if you provide measurements.
Bastet Noir
About Bastet Noir
Price Range: $77–$410
Bastet Noir creates custom, bespoke, fabulous, ethical women’s suits and blazers. The woman-owned brand makes pieces for all sizes, allowing customers to submit custom measurements for any piece.
Items like the Sara 3 Piece Set are made from wool, featuring unique cuts, a high waistline, and trendy burgundy stripes.
Bastet Noir’s Ethical & Sustainability Practices
Materials:
Bastet Noir uses a range of fabrics, including wool, cotton, polyester, silk, lycra, and cashmere—all of which are deadstock and recycled.
Supply chain & labor practices:
Bastet Noir manufactures pieces in a small, ethical production studio in North Macedonia. Their deadstock fabrics are locally-sourced from family-owned businesses.
Carbon commitments & green practices:
Besides custom-made pieces that reduce fabric waste and unnecessary products, Bastet is carbon neutral. They use the Offset App to offset carbon emissions through Pachama, Nori, and Grassroots Carbon marketplaces.
Inclusivity:
Sizes range from EU36–EU42, but customers can also provide custom measurements for on-demand production and a perfect fit.
Community & charitable giving:
Bastet supports multiple social causes and started The Women Fund in 2020 to support their community of women battling the fallout of the pandemic.
Hangrr
About Hangrr
Price Range: $329–$449
Can’t afford a tailor but looking for completely custom sustainable suits?
UK-based Hangrr will custom make you one using AI technology to get precise measurements, reducing fabric waste and unnecessary production costs. Though they started in the UK, they now operate in 41 countries.
There are countless styles and fabric options, like the Burgundy Summer Linen Suit. The breathable design is ideal for outdoor gatherings, weddings, and other events. Pair these with any of their custom-fit dress shirts to layer underneath.
Hangrr’s Ethical & Sustainability Practices
Materials:
Hangrr’s materials vary across being sustainable (wool, linen, and jute) and less-than-sustainable (velvet, cotton, and lycra), so try to stick to the former options when possible. A layer of canvas sits between the outer fabric and inner lining of each suit jacket.
They offer 100% vegan suit constructions, too, substituting materials accordingly.
Supply chain & labor practices:
Hangrr’s suits are handmade at an in-house manufacturing site. They employ their Sadbhavna Program, ensuring no overtime, child labor, safe working conditions, and employee development.
Carbon commitments & green practices:
Where Hangrr excels most in sustainability is their leveraging of custom AI technology to get precise measurements for their garments, reducing fabric waste and excess production. The brand also provides alterations for 180 days and free remakes.
Inclusivity:
They only offer custom sustainable men’s suits. There are no preset size options.
Community & charitable giving:
Hangrr works with various charities annually and help customers donate used and unused clothes to those in need.
