PFAS score
Keen · Waterproof Hiking Socks
Kenetrek Canyon Lightweight Boot Height Socks
Lower concern for typical wool socks, but synthetic elastic blends and undisclosed finishes introduce minor uncertainty.
Kenetrek Canyon socks are primarily merino wool, a natural fiber with lower inherent PFAS risk. However, Keen provides no public disclosure about water-repellent coating treatments, elastic components, or dyeing processes, common sources of PFAS in technical apparel.
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Material
Merino wool blend (primary); elastic/synthetic blend cuff
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 62% 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.