Smartwool · Waterproof Hiking Socks
Smartwool Men's Mountaineer Classic Edition Maximum Cushion Crew Socks
Lower PFAS concern. Natural wool fiber with no waterproofing treatment flagged. No explicit PFAS disclosure.
Smartwool's Mountaineer socks are primarily merino wool, a natural fiber with intrinsically low PFAS risk. The brand doesn't market these as water-resistant or water-repellent coating-treated.
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Material
Merino wool blend (primary natural fiber)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Smartwool has made none
Formulations change between production runs, so check the current label. How we grade.
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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.