Do Nike performance socks have PFAS?
Nike performance socks average 65 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Nike performance socks graded as of October 2026, and none of them reach its 70 point pass mark.
Nike performance socks average Good on our four-band scale. None of them clear our buy threshold.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What Nike says and does about PFAS
Nike says it has converted PFAS to cleaner chemistry alternatives as a completed priority project, and says it has met its target to eliminate PFAS in water-repellent finishes. A 2022 NRDC scorecard gave Nike a D+ because its commitment could leave out PFAS polymer membranes, which Nike disputed. A 2023 California Proposition 65 lawsuit alleged PFAS in a Jordan duffle bag, and we found no reported outcome.
- Brand statementNike says on its chemistry page that PFAS is one of its completed priority chemistry conversions to cleaner alternatives as of FY25. NIKE, Inc. ↗
- Brand statementNike told the press in 2022 that it met its target to eliminate PFAS in water-repellent finishes by the end of 2021. Sourcing Journal (WWD) ↗
- StudyThe 2022 NRDC, Fashion FWD and U.S. PIRG Education Fund scorecard gave Nike a D+ because its phase-out commitment could leave out membranes that contain PFAS polymers, as reported by Sourcing Journal. Nike disputed the score. Sourcing Journal (WWD) ↗
- Legal caseIn May 2023 Ecological Alliance sued Nike and Dick's Sporting Goods in California under Proposition 65, alleging a Jordan duffle bag contains PFAS and carried no warning. These are allegations, and we found no reported outcome. EIN Presswire (press release by the plaintiff's attorneys) ↗
- Legal caseTrade press reported the same May 2023 complaint alleges Nike violated Proposition 65 by not warning about PFOA in Jordan duffle bags. The Fashion Law ↗
- Legal caseA law firm investigation into PFAS in Fabletics, Nike and Gymshark leggings was closed in January 2022 with no lawsuit reported on that page. ClassAction.org ↗
Sources checked September 29, 2026. A brand statement is the company’s own claim, which we report but have not verified. Our grades are model-based estimates, not lab tests.
Which Nike performance socks contain PFAS? Poor and Bad, we’d swap these
- Cotton blend (primary); elastic/synthetic cuffs
- Azo dyes in cotton/synthetic blend. Cotton socks routinely use azo dyes for color. While regulated azo dyes…
4 hazards checked on this product, all on its full breakdown.
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- Cotton/polyester blend (no water-resistant treatment indicated)
- Azo dyes and residual dye contamination. Polyester blended socks routinely use azo dyes for color. While…
5 hazards checked on this product, all on its full breakdown.
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- Polyester/nylon blend, no reported water-resistant or stain-resistant treatment
- Heavy metals. Nike uses synthetic dyes in textile manufacturing; while most azo dyes used in apparel are now…
3 hazards checked on this product, all on its full breakdown.
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- polyester/nylon blend with elastane
- Azo dyes and colorant residues. Polyester and nylon require synthetic dyes; some azo dyes (restricted in EU)…
4 hazards checked on this product, all on its full breakdown.
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- polyester/nylon blend with elastane
- Azo dyes in polyester. Polyester textiles can be dyed with azo colorants, some of which may break down under…
3 hazards checked on this product, all on its full breakdown.
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- Polyester blend / nylon blend with elastic (typical athletic sock)
- Azo dyes and residual dye chemistry. Polyester athletic socks are typically dyed with reactive or disperse…
3 hazards checked on this product, all on its full breakdown.
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- wool blend (merino wool primary)
- Azo dyes. Wool socks are typically dyed; standard industry practice uses azo dyes unless brand specifies…
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonSee every Nike product we grade on the Nike brand page, or the full performance socks ranking.