PFAS score
Brooks · Performance Socks
Brooks Ghost Crew Socks
Lower concern, basic crew socks with no known PFAS triggers, but no transparency from Brooks.
Brooks Ghost Crew Socks are standard cotton-blend athletic socks with no inherent PFAS risk factors (no water-repellency, stain resistance, or nonstick coatings disclosed). Brooks does not publicly disclose PFAS practices for this product.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Cotton blend (polyester/nylon) with elastic
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.