How to Spot Greenwashing in Fashion

Greenwashing has become so normalised in fashion that most of us encounter it multiple times a week without noticing. A brand launches a "sustainable" collection in earth tones. Another announces carbon neutrality without explaining how. A third uses the word "eco" on every product page while operating entirely opaque supply chains. The result is exhaustion: consumers give up trying to distinguish genuine sustainability efforts from marketing theatre, and actually sustainable brands get drowned out by the noise.

This matters because your clothing choices have real consequences. They affect the people making your clothes, the water in their region, the soil where cotton grows, and the landfills where rejected garments end up. If you can't tell which brands are serious and which are performing, you can't make informed decisions. This article is a guide to reading past the performance.

What greenwashing actually is

Greenwashing is the practice of making misleading claims about environmental or social practices to appear more sustainable than you actually are. It ranges from vague marketing language ("eco friendly," "natural," "conscious") to outright fraud, including fake certifications or invented carbon neutral claims. Most greenwashing sits in the middle: technically defensible but deliberately obscure.

Why is it everywhere? Because sustainability is expensive. Certified organic cotton costs more. Paying fair wages costs more. Transparency, tracking materials, naming factories, publishing audit reports, requires systems and staff that cost more. A brand that cuts corners on all three can undercut genuinely sustainable competitors while claiming the same values. And because most shoppers don't dig deep enough to catch the contradiction, the incentive to greenwash is enormous.

The spectrum of greenwashing looks like this: on one end, a brand uses vague language ("sustainable materials") without defining what that means or proving it. In the middle, a brand makes specific claims but doesn't back them with evidence or third party verification. On the far end, a brand invents certifications, misrepresents supply chains, or makes claims that directly contradict available information about their operations.

Understanding this spectrum matters because it helps you recognise that greenwashing isn't always deliberate deception. Some brands are genuinely trying and just doing a poor job of explaining their efforts. Others are cutting corners on transparency precisely because they know most people won't ask questions. Your job is to distinguish between the two.

The 7 signs a fashion brand is greenwashing

• No factory or workshop names. If a brand will not tell you where products are made, or says "we work with suppliers" without naming them, the claim is hard to verify. Transparent brands name their factories, workshops, and knit producers where possible. A Barcelona based sustainable brand should be able to tell you: this knit is made by Sompunt in L'Espluga Calba, or this fabric is cut and sewn in a named Barcelona area workshop.
• Certifications without scope. "Our fabrics are OEKO-TEX certified" sounds good until you ask what it covers. OEKO-TEX verifies harmful chemical restrictions for the tested textile. It does not verify labour practices, water use, or pesticide restrictions in farming. A more transparent brand explains which certification applies to which material or batch, and what that certification does and does not cover.
• "Eco" or "sustainable" with no evidence. Words like "eco friendly," "sustainable," and "ethical" are marketing noise unless tied to specific practices or certifications. Ask: sustainable in what way? Certified how? Made where? If the answers stay vague, the claim is weak.
• Carbon neutral claims without methodology. "We're carbon neutral" means little without explanation. Did they measure their emissions? Did they offset them? How? Through verified carbon credit programmes, or through a project with opaque accounting? A credible brand should publish its methodology, baseline and offsetting approach.
• A "sustainable" line, not sustainable practices. The classic greenwashing move is launching a "conscious collection" with slightly better materials while the rest of the brand operates unchanged. This lets a brand claim sustainability credibility without overhauling operations. A genuinely sustainable brand is working to improve everything, or they're honest about what they can't change yet and why.
• No acknowledgment of limits. Sustainable fashion is hard, and no brand does it perfectly. Greenwashing brands speak in absolutes: "our materials are 100% sustainable," "we have zero waste." More credible brands acknowledge constraints: "some waste from cutting is unavoidable," or "we would like to use certified organic cotton for all products, but it is not available in the weights and colours we need yet." Specificity and limitation are signs of honesty.
• High volume, fast turnaround production with sustainability claims. Very fast, high volume production makes waste harder to control because it depends on prediction, discounting and constant newness. If a brand is posting new styles weekly and promoting two day shipping while claiming sustainability, ask how the model avoids overproduction. Lower waste fashion usually moves slower: preorder, made to order or limited seasonal batches.

The certifications that actually mean something

Third party certifications aren't perfect, but they're verifiable. Here's what actually matters and what each covers:

• OEKO-TEX Standard 100. Certifies that a fabric or finished garment is free of harmful chemical residues. It covers dyes, finishes, and chemical treatments on the product itself. It does not cover labour practices, pesticide use in cultivation, or water impact. Useful as one part of the picture, not the whole one.
• GOTS (Global Organic Textile Standard). Covers organic fibre cultivation (no synthetic pesticides, no GMOs), labour standards (fair wages, safe conditions, no forced labour), and chemical restrictions in processing. This is one of the most credible standards because it requires third party audits and covers multiple aspects of production. If a brand says cotton is GOTS certified, that's worth paying attention to.
• European Flax Certified. Verifies that flax is grown in Europe and can be traced through processing. It is a regional standard that emphasises traceability and European cultivation. Worth seeking out if you're buying linen or linen blend fabrics, as it reflects European agricultural standards and supply chain transparency.
• Fair Trade Certification. Requires social and environmental standards, with emphasis on fair wages and working conditions. It's independently audited. Fair Trade certified means workers and producers receive fairer compensation and have some say in conditions. Like other certifications, it's not perfect, but it's verifiable.
• B Corp Certification. Not specific to textiles, but requires companies to meet rigorous social and environmental performance standards, with accountability to all stakeholders, not just shareholders. A B Corp brand has undergone external audit and commits to transparency. This doesn't guarantee perfect sustainability, but it signals systemic commitment.

The pattern you should notice: specific certifications cover specific aspects (chemicals, labour, water, fibre origin). An honest brand will list which certifications apply to which products and explain what each one does. A greenwashing brand will bundle certifications vaguely or highlight them without context.

The questions to ask before buying

Before you buy from a "sustainable" brand, ask these five questions. If the answers are vague, overly technical or mostly marketing, that is a signal to pause:

1. Where is this piece made, and by whom? Expect a specific answer: "Our knit sweaters are made by Sompunt in L'Espluga Calba, Lleida." If a brand only says "sustainable facilities" or "ethical partners" without names, the claim is incomplete. You should be able to find the workshop or factory, its location, and often its website or credentials.
2. What certifications apply to this specific product, and what do they cover? Not just "we use certified fabrics." Specifically: "This linen carries European Flax certification for fibre traceability," or "this dye batch has OEKO-TEX testing for restricted substances." This level of specificity separates evidence from marketing.
3. What's your production model, and why? Are they made to order? Preorder with limited runs? Small batch? The answer reveals whether the brand's sustainability claims are credible. Made to order or preorder models inherently minimise overproduction and waste. Fast fashion turnaround models cannot claim sustainability credibly.
4. What happens to unsold or returned garments? Do they resell B grade stock? Donate to charity? Send to recycling? Landfill? An honest answer acknowledges that some waste is inevitable and explains what they're doing to minimise or manage it. A vague answer suggests they're not tracking it or aren't prepared to say.
5. What sustainability practices are you working towards that you're not doing yet, and why? This question separates evidence from performance. A credible brand might say: "We would use organic cotton for everything, but availability in the weight and colour we need is limited. We are testing alternatives with our suppliers." They acknowledge the constraint and the tradeoff.

What honest sustainability actually looks like

Honest sustainability has a specific tone. It does not claim perfection. It names constraints. It links claims to evidence. It is often slower, more transparent, and less convenient than the greenwashing alternative.

A more transparent brand says: "This linen is European Flax certified. Our cut and sew happens in the Barcelona area. We operate on preorder because producing from confirmed demand reduces overstock risk. These choices make us slower and more expensive than fast fashion, but they are part of the product." The language is specific and verifiable.

A greenwashing brand says: "Our collection is made with sustainable materials. We're committed to ethical practices. We work with responsible partners. Join our movement toward a more conscious fashion future." Every claim is soft. None are verifiable without digging, and often they're impossible to verify at all.

The difference is often friction. More responsible production can mean slower timelines, higher prices and fewer options. Greenwashing removes friction in the language while keeping the convenient model underneath.

When you're evaluating a brand, look for what the model makes possible. Are they avoiding aggressive discounting? Are they limiting newness? Are they naming what they have not solved yet? These constraints can be signs that sustainability is operational, not just promotional.

Moving forward: how to shop with clarity

Spotting greenwashing is a skill, not a talent. You're learning to distinguish between three categories: brands doing genuine work (and explaining it clearly), brands making sincere efforts but communicating poorly (ask questions and listen), and brands using sustainability as a marketing filter while operations stay unchanged (avoid).

The starting point is always the same question: can they name the factory, the certification, the material, the process? If the answer is yes and the details check out, you are likely dealing with a more credible brand. If the answer is vague, marketing speak or evasive, the claim needs more scrutiny.

For more on how we approach transparency in our own work, including the limits we acknowledge and the partnerships we've built, visit what transparent sourcing looks like in practice. And if you have questions about how sustainable fashion actually works, check our answers to the most common sustainable fashion questions.

Greenwashing thrives on vagueness. Specificity, accountability, and honest acknowledgment of limits are how you find brands that mean it.

For a transparent product example, read the composition and care notes on the Linen Shirt, then compare them with the sourcing detail on our transparency page.