PFAS score
Allbirds · Waterproof Hiking Socks
Allbirds Anytime No Show Sock Rugged Beige L
Lower concern, natural fiber sock with no known water/stain treatment, but Allbirds has not publicly disclosed PFAS testing.
Allbirds Anytime socks are primarily merino wool with nylon reinforcement, materials not typically requiring PFAS-based treatments. Allbirds has made no public PFAS claims or third-party verifications for this product line.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Merino wool blend (primary); minimal synthetic reinforcement
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 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.