PFAS score
Smartwool · Performance Socks
Smartwool Men's Hike Light Cushion Ankle Socks
Lower-concern base fiber; no water-resistant coating typical of hiking socks reduces PFAS risk.
Smartwool's standard hiking socks are primarily merino wool with nylon reinforcement, materials not inherently associated with PFAS. The brand does not claim PFAS-free status or disclose water-repellent coating chemistry, but light-cushion ankle socks typically lack the water-repellent coating (water-repellent coating) treatments that…
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Material
merino wool blend with nylon/elastane
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.
More performance 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.