PFAS score
Thorlo · Performance Socks
Thorlo Unisex Maximum Cushion Ankle Running Socks (6-Pack)
Lower PFAS concern; basic athletic sock with no disclosed water/stain treatments.
Thorlo's maximum-cushion running socks are standard textile blends without advertised water-repellent or stain-resistant finishes that typically contain PFAS. The brand makes no PFAS claims and no independent certification data is publicly available.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Acrylic, cotton, nylon blend with cushioning
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 performance 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.