PFAS score
Smartwool · Waterproof Hiking Socks
Smartwool Men's Hike Classic Edition Full Cushion Crew Socks
Lower PFAS concern, plain wool socks with no disclosed treatments, but verify fiber content if sourcing matters to you.
Smartwool's Hike Classic socks are primarily merino wool, a natural fiber with no inherent PFAS risk. The brand does not disclose any water-repellent coating (water-repellent coating), stain-resistant, or Teflon-family coating treatments. No independent lab data or PFAS claims are publicly available.
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Material
Merino wool blend (primary fiber); no reported water-repellent coating (water-repellent coating) or stain treatment disclosed
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 78% 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.
More waterproof hiking socks 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.