Nike · Waterproof Sports Undergarments
Nike Men's Primary Dri-FIT Versatile Tank Top
Lower concern, but water-repellent coating finish PFAS status unknown from Nike.
The polyester blend has Dri-FIT moisture-wicking treatment, typically involving a water-repellent coating commonly PFAS-based. Nike doesn't disclose chemistry.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
polyester blend with Dri-FIT moisture-wicking treatment
Lab data
No public lab test
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What Nike Men's Primary Dri-FIT Tank Top is made of, ingredients and materials
This tank is polyester blend with Nike's Dri-FIT moisture-wicking finish, a hydrophilic polymer treatment applied to the surface to pull sweat away from skin. Polyester itself is a synthetic fiber with no established leaching hazard under normal wear, but the Dri-FIT treatment chemistry and any water-repellent (water-repellent coating) coating applied remain proprietary. Nike does not publicly disclose whether this specific garment uses PFAS-based or PFAS-free water-repellent coating; the 20/100 PFAS grade reflects this silence. The fiber may shed microplastics when washed, a known property of all synthetic textiles.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
PFAS
Nike has not disclosed whether this tank's water-repellent finish uses PFAS-based or PFAS-free chemistry. If PFAS-based, dermal contact during wear and wash-water release are potential exposure routes; if PFAS-free, no established hazard on record.
Source, ATSDR ↗Microplastic shedding during washing and wear
All polyester textiles shed microfibers; this is a known property of the material class, not unique to Nike. Shedding increases with wash frequency and hot water. Shed fibers can enter waterways but personal dermal exposure from a worn garment is negligible.
Coating degradation and leachables over time
The Dri-FIT finish degrades with washing and heat exposure. As the coating breaks down, the identity and leaching potential of residual treatment chemicals remain unknown. No testing data is available for this product after 50+ washes.
What’s reassuring
Formaldehyde / VOCs
No recalls or public reports of excess formaldehyde in Nike Dri-FIT tanks. Polyester production can involve formaldehyde-releasing cross-linkers, but finished garments tested by third parties have not flagged this brand for non-compliance with textile safety standards.
Source, ATSDR ↗Heavy metals
No established recall history for azo dyes or cadmium/lead in Nike athletic tank colorants. The brand manufactures under Oeko-Tex or similar audits in many lines, though specific certification for this SKU is not publicly confirmed.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Nike has faced scrutiny over PFAS use in waterproof apparel but has not committed to full phase-out timelines in public statements. The brand does not routinely disclose water-repellent coating chemistry or formulations on retail product pages. No recalls for formaldehyde, azo dyes, or antimony contamination have been issued for Dri-FIT tanks as of public record. Nike holds ISO 14001 certification for environmental management but does not publish third-party test reports for chemical content in this garment line.
How it compares in its category
Dri-FIT polyester tanks are mainstream in athletic wear; most competitors (Adidas, Under Armour, Lululemon) use similar moisture-wicking polyester blends with undisclosed water-repellent coating finishes. Brands like Patagonia and Allbirds publish PFAS avoidance commitments; Nike's silence places it mid-range on transparency. The polyester microfiber shedding issue is inherent to the category, not specific to Nike. Price point and durability are typical for premium sportswear.
If you buy it
Wash in cool or warm water (not hot) to reduce microplastic release and preserve the Dri-FIT finish; use a mesh laundry bag if possible. Air-dry rather than machine-dry to avoid heat degradation of the moisture-wicking treatment. Replace when elastic degrades or coating visibly peels; normal lifespan is 50-100 washes. Do not use fabric softener or bleach, which degrade the hydrophobic treatment and can increase chemical leaching.
What is not known about PFAS in this product?
- Basis
- Model estimate, 55% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Nike has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Nike Men's Primary Dri-FIT Versatile Tank Top?
- Cotton-blend knit jersey, uncoated
- We found no PFAS statement from the brand
- Azo dyes and synthetic colorants
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- cotton jersey, no applied finish
- We found no PFAS statement from the brand
- Azo dyes and colorant residues
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- 100% cotton jersey knit, untreated
- We found no PFAS statement from the brand
- Azo dyes
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore waterproof sports 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.