PFAS score
Injinji · Waterproof Hiking Socks
Injinji Liner Crew
Lower-concern choice; synthetic base fibers carry no known PFAS risk, but brand offers no transparency.
Injinji Liner Crew socks are constructed from nylon and polyester, synthetic fibers not typically associated with intentional PFAS addition. No water-repellent or stain-resistant coatings are marketed.
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Material
Nylon and polyester blend (synthetic fiber)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
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 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.