All 52 waterproof sports undergarments we scored fail our PFAS screen
We scored 52 waterproof sports undergarments for PFAS forever chemicals and other hazards, then ranked them best-graded first. Every score below links to the full breakdown of what earned it.
100% of the 52 waterproof sports undergarments we scored fail our PFAS and toxin screen.
The best-scoring waterproof sports undergarments for PFAS risk
Nothing in this category clears our buy threshold yet. That is the finding, not a gap.
The waterproof sports undergarments we would skip
Lowest scoring in this category, worst first.
Nike
Men's Dri-FIT Ready Fitness T-Shirt
polyester blend with Dri-FIT moisture-wicking treatment
Antimony in polyester fiber
Limited concern
Formaldehyde / VOCs
Limited concern
Volatile organic compounds (VOCs) from finish coating
Limited concern
Microplastic shedding from fiber degradation
Limited concern
Lower concern for standard athletic tee, but water-repellent coating finish may contain PFAS.
⚠Waterproof or stain-proof treatment
Nike
Men's AeroSwift Dri-FIT ADV Short-Sleeve Running Top
Polyester blend with Dri-FIT moisture-wicking technology and likely water-repellent coating finish
PFAS
High concern
Formaldehyde / VOCs
Limited concern
Microplastic Shedding
Limited concern
Dri-FIT apparel likely treated; Nike discloses nothing about PFAS.
⚠Waterproof or stain-proof treatment
Nike
Men's Dri-FIT Pro Tight Sleeveless Fitness Top
polyester blend with Dri-FIT moisture-wicking treatment
Formaldehyde / VOCs
Limited concern
Coating degradation and microplastic shedding
Limited concern
Lower concern, but Nike doesn't disclose water-repellent coating chemistry.
⚠Waterproof or stain-proof treatment
What we check on waterproof sports undergarments
- Confirmed PFAS, PTFE or fluoropolymer content, which is the heaviest penalty we apply.
- Stain, water or grease resistant treatments, which usually mean fluorinated chemistry.
- Whether the brand discloses what is in the product, or stays silent behind a “clean” claim.
- Independent lab results and certifications where they exist.
Full point-by-point rubric on the methodology page.
The waterproof sports undergarments brands that will not say
8 of the brands here publish nothing about PFAS at all. Silence is not evidence of harm, but it is why none of them score well on disclosure.
Brooks, Calvin Klein, Carhartt, Nike, Puma, Reebok, Saucony, Tommy Hilfiger.
Common questions about PFAS in waterproof sports undergarments
Is waterproof sports undergarments PFAS free?
Mostly not. Of the 52 waterproof sports undergarments we have scored, 100% fail our PFAS and toxin screen, which leaves 0 that pass. The lowest is Nike Men's Dri-FIT Ready Fitness T-Shirt at 20.
Which waterproof sports undergarments should I avoid?
The three lowest scoring we hold are Nike Men's Dri-FIT Ready Fitness T-Shirt at 20, Nike Men's AeroSwift Dri-FIT ADV Short-Sleeve Running Top at 20, Nike Men's Dri-FIT Pro Tight Sleeveless Fitness Top at 20. The problem with the first is that lower concern for standard athletic tee, but DWR finish may contain PFAS.
Which waterproof sports undergarments brands will not say whether they use PFAS?
8 of the brands we scored in this category publish nothing about PFAS at all, including Brooks, Calvin Klein, Carhartt, Nike, Puma, Reebok. Silence is not evidence of harm, but it is the reason those brands cannot score well on disclosure.
Do you lab test waterproof sports undergarments?
No. We score from published ingredient lists, materials, certifications, disclosures and third party lab results where they exist. Where a product has been independently tested we use that result and say so.
More food and water categories we have graded
Same rubric, same scale. These are the categories closest to waterproof sports undergarments.
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- Best non-toxic food packaging178 graded
- Best non-toxic waterproof camera & lens protection cases145 graded
- Best non-toxic waterproof outdoor gear storage bags126 graded
- Best non-toxic waterproof bags & luggage123 graded
- Best non-toxic waterproof phone cases110 graded
- Best non-toxic phone battery cases75 graded
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