13 Best Sustainable Clothing Brands
Every clothing brand now has a sustainability page. Almost none of them say anything you can check. You get a paragraph about caring for the planet, a photograph of cotton, and a promise to do better by 2030, and you're no closer to knowing whether the shirt in your basket was made any differently from a Shein one. So we sorted these 13 brands by the strength of what they can show, from three audited certifications down to one that shows nothing at all and is on the list anyway.
How We Judged These Brands
Four kinds of evidence separate a real claim from a nice sentence, and we checked each brand's own site for them in August 2026.
Named third-party certification is the strongest. GOTS covers organic fibre through the whole supply chain, Fairtrade covers what growers are paid, and B Corp assesses the company rather than the product. Each is audited by someone other than the brand.
A repair or take-back service that exists comes next, because a company offering free repairs has made a bet against you buying again next year. A published factory list tells you where the clothes were made. Fibre and composition detail is the weakest of the four, since a brand can name TENCEL without telling you how much of it is in the garment.
Brands sit in that order below. The last one on the list publishes none of it, and we've said so rather than quietly leaving it out.
| Brand | Price | What it can show |
|---|---|---|
| Kowtow | From NZ$119 | B Corp, GOTS and Fairtrade |
| Lucy & Yak | £69 to £75 | Fair Wear, GOTS, Ecocert, GRS |
| Nudie Jeans | $195 to $260 | Free repairs and resale |
| Asket | $65 to $240 | Lifetime repair and take-back |
| Christy Dawn | $198 | Regenerative cotton, named farm partner |
| MATE the Label | $44 to $158 | B Corp and Climate Neutral |
| Girlfriend Collective | $98 to $128 | OEKO-TEX, XXS to 6XL |
| Kotn | Mid-range | B Corp, named countries of make |
| Armedangels | From €29.90 | TENCEL and its DetoxDenim line |
| Everlane | Mid-range | Published factory list |
| Outerknown | $38 to $168 | Materials and factories page |
| Reformation | $128 to $328 | RefScale per-garment footprint |
| Quince | $42 to $60 | Nothing third-party. Cheapest natural fibres |
Kowtow
Kowtow is a New Zealand brand carrying B Corp, GOTS and Fairtrade certification at once, which no other brand on this list manages. It describes what it makes as "Fairtrade, plastic-free clothing", and the plastic-free part is the unusual half. Most brands in this space lean on recycled polyester, which keeps the synthetic in the wardrobe.
Prices are in New Zealand dollars and the range runs from the Unity Tee (NZ$119) and the Drape Pant (NZ$179) up to the Study Dress (NZ$329) and the Signify Dress (NZ$499). Converted, that puts most pieces in the same bracket as Reformation without the occasion-dress focus.
The catch worth knowing is shipping. Ordering from the US or UK means an international parcel and the return trip if the fit is wrong.
Best for: readers who want every certification on one label and will pay for it.
Lucy & Yak
Lucy & Yak is a UK brand best known for dungarees, and it lists Fair Wear Foundation membership alongside GOTS, Ecocert Organic and Global Recycled Standard certification. It also runs Re:Yak, a resale route for pieces you're finished with.
The dungarees are the reason to come. The Arlo Cotton Wide Leg Dungarees (£69) and the Jenny Wide Leg Cotton Dungarees (£75) are 98% and 100% organic cotton respectively, with the composition printed on each listing rather than buried in a materials page.
Prices are in pounds, and the site discounts hard and often. The figures above are list prices, so waiting a few weeks usually costs you nothing.
Best for: colour and dungarees, in UK sizing, with the organic percentage stated per garment.
Nudie Jeans
Nudie Jeans makes organic cotton denim and repairs it free, for as long as you own it. The brand runs Repair Shops where worn pairs get fixed, resold or sent into its recycling programme, and it describes its jeans as "the kind you repair, not replace".
In denim that promise changes the maths more than fibre choice does. A pair of Lean Dean ($195) or Gritty Jackson ($195) that gets patched twice outlives three cheap pairs, and the repair costs you nothing. Selvage options run higher, with Loud Larry Lightning Selvage and Lean Dean Dry Ohm Selvage both at $260.
Dry denim asks something of you first. It needs months of wear before it softens and breaks in, and the brand's whole model assumes you're willing to do that.
Best for: one pair of jeans you keep for a decade.
Asket
Asket sells a fixed permanent collection with lifetime repair and take-back on every piece, made in Europe from natural fibres. There are no seasonal drops, which is the point. The brand is arguing that a wardrobe gets more sustainable when the catalogue stops changing.
The T-Shirt is $65 for men and $70 for women, and it comes in an extended sizing grid with published fit guides per category rather than a plain S to XL run. The Oxford Shirt ($190) and the Loose Twill Chino ($230) sit at the top of the range, with the Slip Skirt at $240.
Asket names no third-party certification anywhere we could find, which is a real gap for a brand at this price. What it offers instead is traceability and a repair service, and you should know that's a different kind of proof.
Best for: buying a small number of pieces in a size that fits.
Christy Dawn
Christy Dawn grows its own cotton. The brand's Farm-to-Closet range uses regenerative cotton from a named partner, the Oshadi Collective, and it reports more than 200 acres of farmland regenerated through that work. It also keeps a deadstock collection made from fabric that already existed.
The Dawn Dress ($198) is the piece the brand built its name on, and it comes in a petite cut at the same price. Most of the range sits in dresses rather than separates, so this is a wardrobe addition and not a wardrobe. Readers wanting the same look elsewhere can start with brands like Christy Dawn.
Naming the farm is the part that matters. Plenty of brands say regenerative. Being able to point at the collective growing the fibre is a claim with an address attached.
Best for: dresses, and for caring where the cotton was grown rather than only what it's certified as.
MATE the Label
MATE the Label is a Los Angeles organic cotton brand holding both B Corp and Climate Neutral certification, and it names the compounds it excludes rather than gesturing at cleanliness. Its products are stated to be free from pesticides, microplastics, formaldehyde, carcinogens, endocrine disruptors and non-organic dyes.
The range is loungewear and knits rather than anything structured. The Organic Comfort Crop Tank ($44) and Organic Comfort Triangle Bralette ($44) are the entry pieces, with the Organic Pointelle Cardigan ($138) and Organic Waffle Collared Half-Zip Sweatshirt ($158) at the other end.
Best for: soft organic cotton pieces, and the clearest statement of excluded chemicals in this list.
Girlfriend Collective
Girlfriend Collective makes activewear and basics from recycled materials in OEKO-TEX STANDARD 100 certified fabric, and it sizes them XXS to 6XL. That range is the widest of the 13 brands here, and it's the strongest reason to shop it.
The Compressive High-Rise Legging ($108) is the core piece, with the Luxe Legging ($128) as the softer option and the Luxe High-Rise Capri ($98) as the cheapest entry. OEKO-TEX certifies the fabric for harmful substances, which is a narrower claim than GOTS makes but a checkable one. Our guide to non-toxic activewear brands goes further into that distinction.
Best for: the widest size range here, with a certificate behind the fabric.
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Kotn
Kotn is a B Corp certified basics brand that names its countries of manufacture on the shop page itself, describing its range as "better basics, built to last from the finest natural fibres. Designed in Canada, ethically made in Egypt, Portugal and Turkey."
Naming three countries in a product description is more than most brands do anywhere on their site. Prices sit mid-range, though the collection pages didn't surface them for us, so check before you plan a basket.
Best for: cotton basics where you want the country of make stated up front.
Armedangels
Armedangels is a German brand whose denim is the strongest part of the range, sold under a programme it calls DetoxDenim. The BAARLY High Waist Barrel Jeans and ENIJAA High Waist Wide Jeans are both €129.90, with the AARJO TARPA Tapered Jeans matching that for men.
Tees start lower. The JAAMES T-Shirt is €29.90 and the ICONIC Å TARJAA T-Shirt is €49.90, which makes this the most affordable European option on the list. TENCEL appears across the range.
Prices show in euros and sizing follows European conventions, so check the conversion on both before ordering from the US.
Best for: European-cut denim under €130.
Everlane
Everlane publishes a factory list, which is the thing it has sold itself on from the start. The site states its "materials, factories, certifications" are "verified, traceable, third-party backed", and it keeps both a factories page and an impact report you can read before buying.
A factory list answers where clothes are made, which is one question of several, and readers who want the fuller picture can weigh it against the rest of this list. Materials named across the range include organic cotton, Supima cotton and TENCEL, and the Women's Organic Cotton Box Cut Pocket Tee is the piece the natural-fibre collection leads with.
Prices sit mid-range and weren't published on the category pages we checked.
Best for: reading where something was made before you buy it.
Outerknown
Outerknown keeps a combined materials and factories page, which puts fibre sourcing and manufacturing in one place instead of scattering them across a sustainability microsite. The brand's range is surf-led menswear.
Swim shorts are what it does best, and the Tahiti Pro APEX Evolution Trunk ($168) sits at the top of that range. Everyday pieces run much cheaper, with the Tahiti Pro Graphic Tee at $50, the Hooded Sun Shirt at $100 and the OK Patch Trucker at $38.
We couldn't confirm a named certification on the pages we checked, so the factory and materials disclosure is the verifiable part rather than any certification you may have seen quoted elsewhere.
Best for: swim shorts and surf-adjacent menswear.
Reformation
Reformation publishes RefScale, a tool that reports the footprint of an individual garment rather than the company as a whole. Per-item reporting is rare, and it lets you compare two dresses on the same page instead of taking a corporate total on trust.
Dresses are the deepest part of the range. The Demi Linen Dress ($128) is the accessible end, with the Hugo Knit Dress ($198) in the middle and the Opaline Silk Dress ($248) and Lilibeth Silk Dress ($328) at the top.
RefScale reports numbers the brand calculates itself, which is a weaker form of proof than an outside audit. It's still more than most brands at this price publish.
Best for: occasion dresses, with a per-garment number attached.
Quince
Quince sells natural fibres at the lowest prices on this list and publishes no third-party certification at all. The European Linen Long Sleeve Shirt is $42, the Organic Cotton Cable Crew Cardigan is $50 and the Mongolian Cashmere Johnny Collar Polo Sweater is $60.
The brand's stated model is factory-direct: "Our factory-direct model passes the savings to you." Materials are given as 100% compositions, so you know a cashmere sweater is cashmere throughout.
Here's why it's still here. A reader on a tight budget is going to buy something anyway, and the $50 Organic Cotton Cable Crew Cardigan beats a cheap acrylic one on every measure that matters. Judge it on the composition, which is stated, and not on certifications, which aren't. Our roundup of brands like Quince covers the rest of that price bracket.
Best for: the smallest budget, where the alternative is polyester.
Which of These Brands Should You Buy From?
Buy against the category, not the label. Denim goes to Nudie Jeans, because free repairs matter more on jeans than on anything else you own. Dresses go to Christy Dawn or Reformation depending on whether you care more about the farm or the price. Dungarees and colour go to Lucy & Yak. Basics go to Kotn or Everlane.
If certification is the thing you want, Kowtow is the answer and there isn't a close second. Three audited standards on one label is unusual, and you pay for it in both price and international shipping.
If the budget is tight, buy Quince and be clear-eyed about what you're getting. Stated compositions, no outside audit, and prices that let you replace polyester with linen and cotton right now. That's a real improvement even though it's the weakest evidence here.
One warning applies across the list. Currencies differ between these brands, so check what you'll pay from Kowtow, Lucy & Yak and Armedangels before you fall for a piece. If you want to test a claim yourself, our guide to telling a sustainable brand from greenwashing walks through it, while affordable non fast fashion brands covers the sub-$100 end in more depth.
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Written by
Ash Read
