PFAS score
Feetures · Sports Performance Undergarments
Feetures High Performance Ultra Light No-Show Tab
Moisture-wicking socks likely treated; brand silent on PFAS
Performance athletic socks typically use water-repellent coating finishes, often PFAS-based. Feetures makes no public PFAS disclosure. Lower confidence due to lack of transparency on treatments used.
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Material
Nylon blend with moisture-wicking treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 55% 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.
Safer alternatives in Sports Performance Undergarments
Feetures
High Performance Cushion No Show Tab
Acrylic blend sock with no disclosed treatments
Lower concern; no water-repellent coating treatment disclosed for socks.
⚠Risky category by default
Feetures
Elite Light Cushion Tab Limited Edition Performance Socks
Merino wool blend, nylon, elastane
Lower concern. Merino wool socks unlikely to contain PFAS, but brand offers no transparency.
⚠Risky category by default
Feetures
High Performance Max Cushion Tab Socks
Merino wool blend, synthetic fibers
Lower concern socks; no PFAS-prone features identified.
⚠Risky category by default
More sports performance undergarments 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.