PFAS score
Allbirds · Hiking Pants
Allbirds Natural Legging High Waisted Gray Legging NWT LARGE - New Women | Color: Grey | Size: L
Lower PFAS concern; natural fiber athletic brand, but no explicit water-repellent coating or water-repellent claims to flag, and no public PFAS transparency.
Allbirds Natural Leggings are a synthetic stretch textile with no disclosed water-resistant or stain-resistant finish. Allbirds publishes sustainability commitments but does not publicly disclose PFAS use or testing.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Likely nylon/polyester blend; no specialty coating 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 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 hiking pants 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.