Nike Women's Shoreline Scoop Neck One Piece Swimsuit
High PFAS risk. Skip until Nike discloses water-repellent coating chemistry. Swimwear often uses PFAS water repellents.
Nike's Shoreline swimsuit likely uses a water-repellent coating finish typical of performance swimwear. Nike doesn't provide public disclosure on PFAS use in this product.
The better-graded swap
Patagonia
Patagonia Women's Bottom Turn Racerback Bikini Top
90/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Nylon/polyester blend with water-repellent coating finish
Lab data
No public lab test
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What Nike Women's Shoreline Piece Swimsuit is made of, ingredients and materials
This swimsuit is a nylon/polyester blend finished with a water-repellent coating (water-repellent coating) treatment. water-repellent coating finishes on swimwear commonly use PFAS "forever chemicals" (PFAS) to achieve water shedding. The blend itself is a standard synthetic choice for swimwear, but the chemical finish applied to the fabric surface is the primary concern for this product.
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
Water-repellent coating treatment on this nylon/polyester blend almost certainly contains fluorinated PFAS compounds. Nike has not disclosed the chemistry, and no alternative finish is named in available product information. PFAS can leach into skin and accumulate in the body.
Source, ATSDR ↗Formaldehyde / VOCs
Nylon and polyester fabrics may be treated with formaldehyde-based resins for wrinkle resistance or shape retention. No product label or third-party certification rules this out for this specific swimsuit. Off-gassing is typically minimal after washing but can occur with new garments.
Source, ATSDR ↗Antimony in polyester
Polyester fabric in this blend may contain antimony as a catalyst residue from manufacturing. Amounts are generally low in finished garments and skin contact exposure is not well-established as a primary concern, but uncontrolled manufacturing processes can leave higher residues.
Coating degradation and chemical release over time
Water-repellent coating finishes on swimwear degrade with use and washing, potentially releasing finish chemicals into water and skin. Nike provides no guidance on water-repellent coating longevity or refresh options, leaving buyers without clear signals for replacement timing.
What’s reassuring
Azo dyes
No recall, complaint, or testing data on record suggests azo dye use in this product. Nike products are not typically flagged for this hazard, though no affirmative certification for azo-dye-free production is publicly stated.
How is this PFAS grade calculated?
The brand's record and disclosure
Nike has not publicly disclosed the specific water-repellent coating chemistry used in this swimsuit or its broader swimwear line. The brand has made limited commitments on PFAS phase-out compared to some apparel competitors. No third-party certifications (such as Oeko-Tex, Bluesign, or GOTS) are on record for this product, which would provide independent verification of chemical restrictions.
How it compares in its category
Most mass-market nylon/polyester swimwear uses fluorinated water-repellent coating finishes, making this product typical rather than distinguished. Some brands now offer PFAS-free water repellency or have committed to timeline-based phase-outs; Nike's public stance does not yet reflect this shift. Swimwear made from recycled or certified organic materials with documented non-PFAS finishes are available at comparable price points.
If you buy it
Rinse thoroughly in fresh water after each swim to reduce salt and chlorine degradation of the water-repellent coating finish and potential leaching of finish chemicals. Wash in cool water with mild detergent before wearing. Avoid fabric softeners and bleach, which degrade water repellency and may affect chemical stability. Replace when water-repellent coating noticeably fails (water no longer beads on fabric) or after 1-2 seasons of regular use.
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 Women's Shoreline Scoop Neck One Piece Swimsuit?
- Nylon/polyester blend with elastane (standard swimwear)
- The brand calls it PFAS-free, which we have not verified
- Elastane (spandex) degradation under heat or chlorine
- Cotton/cotton-blend seersucker plaid
- We found no PFAS statement from the brand
- Azo dyes and colorfast stability
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Polyester/nylon swimsuit fabric, likely uncoated or standard finish
- Azo dyes and synthetic colorants
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore swimwear 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.