PFAS score
Icebreaker · Waterproof Hiking Socks
Icebreaker Men's Lifestyle Ultra Light Crew Socks
Lower-concern socks; untreated wool blends typically avoid PFAS, but brand silence limits certainty.
Icebreaker's ultralight crew socks are primarily merino wool, a natural fiber not inherently associated with PFAS exposure. The brand makes no claims about water-repellent or stain-resistant treatments, suggesting none were applied, the main vector for PFAS in textiles.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Merino wool blend (primary); no documented water-repellent or stain treatment disclosed
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 78% 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.