PFAS score
Marks & Spencer · Stain-Resistant Jeans
Marks & Spencer Straight Fit Jeans with Stormwear
Skip until M&S discloses Stormwear chemistry, water-repellent treatments commonly use PFAS.
Marks & Spencer's Stormwear is a proprietary water-repellent coating (water-repellent coating) finish applied to cotton denim. The brand does not publicly disclose whether it uses PFAS-based or PFAS-free chemistry.
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Material
Cotton denim with Stormwear water-repellent treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Stain-Resistant Jeans
Levi's
Men's 501 Original Thermodapt Jeans
100% cotton denim, no disclosed water-resistant treatment
Lower PFAS concern, untreated cotton denim, but verify product tag for any water-repellent coating finish not marketed.
⚠Risky category by default
Levi's
Men's 502 Taper Jeans
100% cotton denim
Lower PFAS concern, basic cotton denim with no performance coatings; buy with confidence.
⚠Risky category by default
Patagonia
Men's Straight Fit Jeans
cotton denim, no water-repellent coating (water-repellent coating) coating
Lower concern; untreated cotton denim has minimal PFAS risk, though Patagonia's PFAS sourcing transparency remains opaque.
⚠Risky category by default
More stain-resistant jeans grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.