Smartwool · Sports Performance Undergarments
Smartwool Unisex Run Zero Cushion Crew Socks
Lower concern. Merino wool socks lack typical water-repellent coating coatings.
This merino wool blend lacks a disclosed water-repellent finish. No PFAS claim exists, but bare wool presents lower risk than treated performance apparel.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Merino wool blend, no stated water-repellent treatment
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.