20/ 100
F

PFAS score

Arc'teryx Kopec Mid GTX Boot Men's, Black / Black, Size 9 , GORE-TEX

Arc'teryx · Waterproof Boots

Arc'teryx Kopec Mid GTX Boot Men's, Black / Black, Size 9 , GORE-TEX

F · High PFAS

GORE-TEX boots carry inherent PFAS concern; Arc'teryx discloses nothing. Moderate risk for a waterproof product.

GORE-TEX is a well-known Teflon-type coating-based waterproof membrane widely used in premium outdoor boots. While Teflon-type coating itself may not be a PFAS per strict chemical definition, GORE-TEX manufacture and water-repellent coating treatments in outdoor gear commonly involve fluorinated compounds.

Still want this one anyway? Check the price on Amazon. We’d swap it.

Material

GORE-TEX membrane (polytetrafluoroethylene-based waterproof/breathable laminate) + nylon/synthetic upper

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.

Hurts the grade

Category baseline

clothing is a category where PFAS exposure is more common.

Hurts the grade

No PFAS disclosure

No public statement about PFAS in this product.

Hurts the grade

What we don’t know

This grade is a model-based estimate from public materials, coatings, and brand disclosure at 65% 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 Waterproof Boots

Allbirds Men's Cruiser Mid Explore Shoes

Allbirds

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D
D · Elevated

Lower PFAS concern due to natural material focus; no water-repellent coating treatment disclosed.

Risky category by default

Mephisto Men's Leonardo

Mephisto

Men's Leonardo

Leather upper, rubber/synthetic sole

D
D · Elevated

Lower concern for a leather dress shoe; no known water-repellent coating typical of this product category.

Risky category by default

Mephisto Men's Fosco Leather Boots

Mephisto

Men's Fosco Leather Boots

Leather upper; rubber sole

D
D · Elevated

Lower PFAS concern for classic leather boots; no treatment features flagged, but brand offers no disclosure.

Risky category by default

More waterproof boots 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.