PFAS score
Smartwool · Waterproof Winter Gloves
Smartwool Thermal Merino Glove
Lower PFAS concern; wool glove with no known water treatment or coating.
Smartwool Thermal Merino Gloves are made from merino wool with no disclosed water-resistant or stain-resistant water-repellent coating treatment. Merino fiber itself carries lower PFAS risk than synthetic performance fabrics.
The safe swap
Patagonia
Patagonia R4 Yulex Regulator Three Finger Mitts
90/100 safety
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Merino wool, no reported coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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 Winter Gloves
Patagonia
R4 Yulex Regulator Three Finger Mitts
Yulex (synthetic rubber), neoprene-free alternative
Lower PFAS concern; Yulex is a known PFAS-reduction choice, though independent lab verification of these mitts is absent.
⚠Risky category by default
More waterproof winter gloves 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.