Have you ever paid more for a product because a brand told you it was good for you and the planet? Many activewear shoppers do exactly this, trusting that the “healthy” image on the label matches what is actually in the fabric. That trust is now being questioned.

The Texas Attorney General’s office has launched a formal investigation into the activewear brand Lululemon. The question: does its activewear contain PFAS, a group of toxic “forever chemicals”?

This sits uncomfortably with a brand built on wellness. Lululemon has denied the claims. It says it phased out PFAS in 2023 and that these chemicals had only ever been used in a small number of water-repellent items. No wrongdoing has been found.

But the case highlights a wider problem: a gap between what fashion brands promise and what is actually in their products.

An industry-wide habit

PFAS (per- and polyfluoroalkyl substances) are synthetic chemicals used to make fabrics resistant to water, stains and sweat. They have also been used in nonstick cookware and some food packaging.

They earned the name “forever chemicals” because they do not break down easily in the environment or our bodies. Instead, they accumulate over time.

This is not a single-brand issue; it is a widespread one. Their use runs........

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