Smartwool · Sports Performance Undergarments
Smartwool Run Pattern Crew Socks 3-Pack
Lower concern. Merino wool socks with no waterproof coating.
Merino wool blend lacks water-repellent or stain-resistant treatments typical of PFAS use. No brand PFAS disclosure exists, though base material is inherently lower risk.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Merino wool blend, no water repellent finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What we don’t know
- Basis
- Model estimate, 78% 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.