How brands use vague green claims to sell sustainability

On 30 March 2022, the European Commission’s EU Strategy for Sustainable and Circular Textiles put textiles fourth for environmental and climate impact after food, housing, and mobility, yet fashion still leans on soft phrases like “eco-friendly,” “sustainably sourced,” and “recycled material” to make a hanger feel virtuous. If the claim does not come with numbers, a standard, and a clear boundary, it is not a sustainability statement, it is a sales tactic.

The words brands love to blur

“Eco-friendly” sounds clean, but it means almost nothing until a brand names the metric behind it. Is the win lower water use, lower emissions, less toxic dyeing, or a shorter supply chain? Without a baseline and a comparison, the phrase is just a halo.

“Sustainably sourced” can be equally slippery. A tag can point to one fiber, one farm, or one shipment while implying the whole garment is green, so you need to know exactly what was sourced, from where, and under what verification. “Recycled material” should never float by itself either: ask for the exact percentage, the part of the garment it applies to, and whether the claim covers the entire piece or only one component like the shell, lining, or trim.

What real proof looks like

A meaningful sustainability claim should be precise enough to survive a hostile read. At minimum, look for the exact recycled content, the standard or certification used, and whether the claim refers to a single product, a category, or the brand as a whole. If the brand says a jacket is made with recycled fibers, the proof should say how much, which fibers, and how that number was measured.

Independent certification and lifecycle data matter because they push claims beyond branding copy. A certification can show that someone outside the sales team checked the material or process, while lifecycle data can show whether a supposedly greener fabric actually lowered emissions, water use, or raw material demand across production. If a brand cannot point to either, it has not substantiated the claim.

This is also where chain-of-custody matters. If a company says a fabric was sustainably sourced, the path from raw material to finished garment should be traceable enough to show where the material came from, who handled it, and what was verified along the way.

Why regulators keep chasing the same problem

The European Commission’s 30 March 2022 EU Strategy for Sustainable and Circular Textiles also put the sector among the top three pressures on water and land use and among the top five for raw material use and greenhouse gas emissions. The same strategy framed the sector as a huge labor engine too, with more than 1.5 million Europeans employed in textile and clothing.

In 2023, the European Commission proposed the Green Claims Directive to require companies to substantiate voluntary environmental claims with evidence. By 2025 and 2026, the proposal was paused or effectively withdrawn, leaving the European rulebook wobblier.

In the United States, the FTC Green Guides remain the main federal reference for environmental marketing claims and for drawing the line against deception.

The scale of the greenwashing problem is not subtle

Greenpeace UK argues that fashion hides the real environmental cost of fast fashion, and the United Nations calls greenwashing a serious obstacle to tackling climate change because it makes the public think companies are doing more than they are.

In 2021, the Changing Markets Foundation found that 60% of sustainability claims made by major fashion brands were deceptive or misleading. Investigations examined more than 450 sustainability claims by European brands, and in 2023 greenwashing claims remained a recurring issue across the sector.

A 2025 MDPI study examined consumer awareness of fashion greenwashing on social media, and research summarized by RESET.org found that only 14% of products with sustainability labels met high credibility criteria.

How to shop the claim, not the campaign

When you see a sustainability claim, strip away the styling and ask for the proof behind it:

• What exactly is being claimed: lower carbon, recycled content, better sourcing, or something else?

• What is the number: percentage of recycled material, amount of certified fiber, or reduction versus what baseline?

• What is the scope: one garment, one collection, or the entire brand?

• Who verified it: an independent certification, a third-party audit, or only the brand itself?

• What is the boundary: does the claim cover the fiber, the fabric, the dyeing, the factory, or the full lifecycle?

It names the material, the standard, the scope, and the limits.