PFAS score
Ariat · Stain-Resistant Workwear
Ariat Men's Rebar M4 Made Tough DuraStretch Straight Leg Pant
Workwear with likely water-repellent coating treatment; PFAS risk unconfirmed by brand.
Ariat's Rebar M4 uses durable cotton blend with stain and water resistance, typical of work pants. Brand does not disclose PFAS use or avoidance; water-repellent coating treatments often contain PFAS, but specific formulation unknown.
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Material
Cotton blend with DuraStretch treatment and stain/water resistant finish
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.
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More stain-resistant workwear 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.