11 Best Sustainable Men’s Clothing Brands (2025)

Paka

Paka’s men’s range includes performance basics made from a mix of natural and certified low-impact materials. Their range includes T-shirts, shorts, long sleeve shirts, underwear, socks, thermals, sweaters, jackets, and accessories.

Products are made with OEKO-TEX 100 certified alpaca wool from free-roaming herds in the Peruvian Andes. Many products also include organic Pima cotton, TENCEL™ lyocell, and bluesign® certified recycled nylon. For their insulated jackets, Paka uses its proprietary PAKAFILL blend of recycled polyester and alpaca as a down alternative.

All Paka’s alpaca fiber is sourced through their Traceable Alpaca Program, which links each product to the exact GPS coordinates of the herd via a QR code on the hangtag. The brand partners directly with Indigenous artisans and traditional Inca herders, offering fair wages and training while supporting the continuation of cultural weaving practices.

Paka is a Certified B Corp and donates 1% of its revenue to community-led initiatives in Peru.

Paka has been rated by Sustainable Jungle. Find the full rating here.

Allbirds

Price Range: $-$$$

Allbirds’ is well known sustainable running shoes brand and their clothing range for men is equal parts comfortable and functional. It includes t-shirts, sweaters, hats and socks.

Allbirds’ clothing features materials like ZQ Merino wool, TENCEL lyocell, Organic Cottin, and patented blends like TrinoXO™ (lyocell, merino wool, and chitosan made from upcycled shellfish skeletons). Their socks include both recycled nylon, virgin nylon and spandex (which are less sustainable materials).

All wool is sourced from New Zealand (where the practice of mulesing is prohibited) and lyocell comes from trees sustainably grown in South Africa using 95% less water than cotton.

Allbirds is a Certified B Corp and all suppliers must adhere to their supplier code of conduct. Tier 1 suppliers are required to participate in independent, third-party social and environmental audits.

Allbirds has measured their carbon footprint and tracks their emissions. They have made several carbon related commitments per their website though we’re yet to see their 2024 or 2025 sustainability report to get an accurate recent read on their progress.

Arms Of Andes

Price Range: $$-$$$

Arms of Andes was founded five years ago by siblings Meli and Rensso Hinostroza in Peru. They offer super soft men’s base layers, mid layers, shirts, bottom layers, underwear, socks and more.

Arms of Andes’ flagship material is their 100% alpaca wool fabric, one of the most sustainable fabrics and ethical wool options available.

Alpaca wool is 100% compostable and Arms of Andes sources from Alpaca herders where alpacas are raised in small, free-roaming herds in the Peruvian Andes. The wool is OEKO-TEX 100 certified and naturally dyed.

Other materials used are cotton stitching and zippers made of a metal and cotton/synthetic mix.

Arms of Andes sources the wool from Alpaca herder co-ops in exchange for living wages. The raw materials become fabric and ultimately clothing in Peruvian factories, close to the sources of the wool in Lima (reducing carbon emissions).

The Arms of Andes team are involved in overseeing both the fabric and garment production by visiting every week, to ensure quality and ethical practices.

The Classic T-Shirt Company

Price Range: $$-$$$

The Classic T-Shirt Company makes short sleeves T-shirts, long sleeve T-shirts, sweatshirts, joggers and shorts in a range of classic colors.

The highly rated sustainable T-shirt brand makes their clothing with 100% GOTS-certified organic cotton which they dye with premium, non-toxic Azo-free dyes. The cotton is combed (for softness), ring-spun, and pre-shrunk so the final product maintains colors and shape.

All their clothing is made in the USA, starting with organic cotton farming and milling. The yarn is then sent to a vertically integrated state-of-the-art facility in L.A. for knitting, handcrafting, and embroidering.

Committed to ethical production practices, all these entities provide fair wages, reasonable hours, and excellent working conditions.

The Classic T-Shirt Company creates products that are designed to last, confirmed by multiple shrink tests and quality control assurances. Durability above all prevents textile waste.

They use only recycled, plastic-free packaging.

tentree

Price Range: $-$$$

tentree is a Canadian maker of men’s clothing (and one of the best slow fashion brands) aiming to “motivate and encourage environmental stewardship through earth-first apparel”.

This includes earth-inspired graphic tees, tanks, button-ups, sweatpants, and hoodies (we can personally vouch for how buttery soft these are). They also make shorts, pants, boxers, winter jackets, and accessories.

tentree uses sustainable materials like organic cotton, hemp, TENCEL, and REPREVE® recycled polyester (made from recycled plastic bottles). Only some products include a small percentage of elastane.

This Certified B Corporation specifies where each product was made via a comprehensive Factory Ledger. All factories bear one or more certifications by WRAP, BSCI, SA8000, Fair Trade, and Fair Wear Foundation.

Taylor Stitch

Price Range: $$-$$$$

Taylor Stitch’s specialty is quality high-end sustainable menswear. With mostly limited runs and a handsome, charming modern-meets-old-times vibe, the ethical clothing brand is best known for its men’s shirts, pants, chinos, sweaters, denim, and jackets.

The brand uses 100% Global Organic Textile Standard certified -organic cotton for 99% of their cotton products. Their “Heavy Bag” custom textile is made of recycled cotton and recycled polyester. The beloved customer favorite “Boss Duck” is a hemp-based heavy-duty working wear fabric (combined with with recycled polyester and a touch of spandex for stretch).

Their leather is sourced as a byproduct and partner tanneries hold Gold certifications from The Leather Working Group. Their ethically-sourced yak wool is offers a softness comparable to cashmere while being more environmentally friendly, and their merino wool is ethically-sourced non-mulesed wool.

A plant-based wax is applied to all their waxed organic cotton items, like their popular Bomber Jacket, a staple piece of men’s eco-friendly clothing designed to be worn year-round for years to come.

The brand ensures ethical production practices by pairing with some of the most responsible factories in the industry. Their fair trade criteria for production partners include fair wages and fair labor practices, outstanding quality control, and a united commitment to environmental protection.

Taylor Stitch also has a ‘Restitch’ program—which offers store credit for returned items to be repaired and resold—and provides free in-store repairs along with online repair tutorials.

Kotn

Price Range: $-$$$

Kotn is a Certified B Corp that offers affordable basics, flannel shirts, button-downs, sweatshirts, sweatpants, chinos, long johns, denim, work pants, and socks.

Kotn uses Giza “white gold” cotton, the finest of all Egyptian cotton available. While Kotn garments are all 100% Giza cotton, not all of it is organically grown yet but they are helping farmers transition to organic practices so that it eventually will be. The brand also uses linen and ECOtek cotton (a fabric made from production waste).

Kotn operates on a direct trade model, purchasing Egyptian cotton directly from family-run farms at set prices to protect farmers from market fluctuations.

All farms and factories are subject to regular brand and third-party audits and all partners guarantee a living wage. Dyes are OEKO-TEX® certified as non-toxic.

Kotn donates a portion of their annual proceeds to fund and build primary schools in Egyptian farming communities.

Outerknown

Price Range: $$$-$$$$

One of the most well-known sustainable men’s swimwear brands, Outerknown designs fair trade men’s clothing and outdoor apparel.

You’ll find sweatshirts, jeans, chinos, tees, henleys, polos, swim trunks, and outerwear that are rustic in appearance, rugged in build and soft to the touch.

Outerknown uses primarily natural materials like organic cotton, hemp, alpaca wool, Kelsun™ (a seaweed-based fiber) and RDS-certified down. Items like their trunks instead feature recycled polyester and Econyl made of discarded fishing nets.

As a bluesign®-approved brand, all their clothing is made without harmful chemicals.

Outerknown publish their full list of suppliers and while manufacturing takes place in Peru, Mexico, Vietnam, Thailand and China, each Outerknown garment is sewn in Fair Trade Certified factories.

Every supplier and factory must abide by its Code of Conduct and Fair Labor Association (FLA) ethical production practices.

Regular collaborations and limited-run products donate profits to pro-ocean NGOs like Ocean Conservancy.

Patagonia

Price Range: $-$$$$

As far as men’s clothing for the outdoors goes, few brands are better than Patagonia. Their clothing range includes sweaters, technical outdoor jackets, vests, pants for hiking and climbing, swim trunks, hats, underwear, t-shirts, gloves, and bags of all shapes and sizes.

Despite that, they’ve kept their line limited for decades and focus on improving classic designs. The Synchilla Snap-T fleece (with a rad retro 90s vibe) was one of their first designs and is still a bestseller.

Not all garments are equally eco-friendly, but their most sustainable materials include organic non-GMO natural fibers like cotton, hemp, and linen. Next are Patagonia’s recycled synthetics, like the 100% recycled polyester used in the Capilene line of activewear basics and baselayers.

They also use ethically sourced and certified wool and down for some of their insulation layers and winter clothing.

All inks are PVC-free and phthalate-free, and you can shop their bluesign®-approved garments to ensure no toxic chemicals were used.

82% of their line is made in Fair Trade-certified factories that are regularly visited by executive staff, so if you’re looking for men’s fair trade clothing, theirs is about as good as it gets. You’ll also find some clothing made in the USA, too.

They support circularity through the lifetime repair-or-replace IronClad Guarantee and Worn Wear, a buy-back program and online thrift store for used Patagonia clothing and gear.

Patagonia is the founding company of 1% for the Planet and is now actually owned by two environmental non-profits.

Pact

Price Range: $-$$

Pact ethical men’s clothing includes items like socks, boxers, briefs, sweatpants, shirts, polos, and hoodies. All garments are simple classics that will pair easily with any outfit.

Pact’s go-to fiber is Fair Trade organic cotton and most of the products are 100% made of it. A handful of garments, like their Stretch Fit tee, have small blends of spandex for greater active performance.

Based in Boulder, Colorado, Pact’s manufacturers are based in India where 74% of their organic cotton raw materials are sourced.

All Pact garments are produced in certified Fair Trade certified factories, free of sweatshop conditions and child labor.

Neem London

Price Range: $$-$$$

Neem London creates tailored, stylish sustainable menswear. Their clothing is beautifully constructed from regenerative, renewable, or recycled materials and crafted in solar-powered mills with zero-discharge of any toxic chemicals.

The men’s fashion range includes staples like well-fitted shirts made of regenerative organic cotton or recycled cotton, ZQ merino wool sweaters, plus polo shirts, overshirts, t-shirts, ball caps, and socks.

Neem employs an innovative spinning system that creates garments with a sustainable stretch and fit that also biodegrades. The brand uses recycled yarn, regenerative organic cotton, and ZQ merino.

The brand spins in Spain, weaves in Italy, and crafts in Romania and Italy, to keep manufacturing close to home.

Neem tracks the impact of its clothing with third-party life cycle assessments. Neem limits water pollution by using biodegradable, non-toxic dyes.

They also upcycle old threads into new sustainable materials. Trade in any unwanted clothes in any condition for a £30 voucher on your first order!

Neem gives back to three different charities to offset their carbon emissions: a UK Tree Buddying scheme, the Harmanlik Wind Power Plant, and a community project in Guatemala which prevents local deforestation and distributes fuel-efficient cook-stoves.