The future of sustainable fashion may depend on replacing the invisible coatings that make clothing waterproof and stain-resistant. The challenge is finding alternatives that are not only safer, but capable of performing at scale.
It is also one of fashion’s biggest sustainability challenges.
For decades, the industry has relied on PFAS—often called “forever chemicals”—to create water- and oil-repellent finishes for outdoor and performance clothing. As concerns over their environmental and health impacts have grown, brands and manufacturers have accelerated the search for alternatives.
The challenge is that replacing a problematic material is often easier than proving that the replacement is genuinely better.
That is the focus of Project DW(O)R-X, a new collaborative initiative led by Fashion for Good to benchmark the performance of PFAS-free durable water- and oil-repellent finishes.
Rather than promoting a single new chemistry, the project aims to answer a more fundamental question: which alternatives can deliver the performance, durability and safety needed for large-scale adoption?
The next phase of sustainable materials
Many PFAS alternatives are already available, but comparing them has been surprisingly difficult.
Testing methods vary, performance data is inconsistent, and laboratory results do not always reflect how garments behave in everyday use.
Project DW(O)R-X brings together brands, manufacturers, chemical companies and testing specialists to evaluate nine PFAS-free solutions across three dimensions: performance, environmental impact and cost.
The goal is not simply to identify the best-performing chemistry, but to create a common framework that allows the industry to make more informed sourcing and innovation decisions.
From intention to evidence
One of the most important ideas behind the initiative is the risk of regrettable substitution—replacing one harmful substance with another that later proves problematic.
That means sustainability cannot rely on good intentions alone.
Materials must be tested for durability, environmental impact and commercial viability before they can be adopted at scale.
To better reflect real-world conditions, the project includes testing against stains such as soil, sunscreen and sweat, creating a more practical benchmark for sportswear and outerwear.
A lesson beyond fashion
The significance of the project extends beyond textiles.
Many industries are now navigating the same transition: moving away from legacy materials while balancing performance, cost and environmental responsibility.
What matters is not only innovation, but credible evidence.
As sustainability moves from aspiration to implementation, the organisations that succeed will increasingly be those that can demonstrate measurable performance, transparent testing and scalable solutions.
The future of sustainable materials may depend less on finding perfect alternatives than on building trusted systems for evaluating them.
That may be the most important breakthrough of all—and it is almost entirely invisible.
To learn more about the project, click here.
__
Sign up for our newsletter to get the latest innovation news and more sent to your inbox.
