PFAS score
Nike · Performance Socks
Nike Midweight Running Crew Women Socks
Lower concern, basic athletic socks with no obvious PFAS triggers, but Nike discloses nothing.
Nike's midweight running crew socks are standard polyester/nylon/elastane blends with no disclosed water-repellent or stain-resistant treatments. No Teflon-type coating, Teflon-family coating coatings, or water-repellent coating finishes are publicly listed.
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Material
polyester/nylon blend with elastane
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
No PFAS disclosure
No public statement about PFAS in this product.
Category baseline
clothing is a category where PFAS exposure is more common.
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.