PFAS score
Lululemon · Swimwear
Lululemon Waterside High Neck One Piece Size 6 Black Rare
Moderate PFAS risk due to waterproof treatment; Lululemon does not disclose water-repellent coating chemistry.
Lululemon swimwear typically uses nylon/polyester with water-repellent coating (water-repellent coating) coating to maintain performance. The brand does not publicly disclose whether this coating is PFAS-based or PFAS-free.
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Material
Nylon/polyester blend with water-repellent coating (likely C6 or legacy fluorocarbon)
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 62% 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 Swimwear
Speedo
Women's Eco Solid Adult Super Pro Swimsuit
Polyester/nylon blend (standard swimsuit fabric)
Lower concern, typical swimwear without known water-repellent treatment, but Speedo has not publicly disclosed PFAS avoidance.
⚠Risky category by default
Patagonia
Women's Bottom Turn Racerback Bikini Top
Nylon/polyester blend with elastane (standard swimwear)
Lower concern, basic swimwear without water-repellent coating, though Patagonia's broader PFAS practices warrant review.
⚠Risky category by default
Athleta
Girl's Cloud Scoop One Piece
polyamide (nylon) blend swimsuit
Lower concern; basic swimwear without waterproofing treatments typically avoids PFAS, but Athleta makes no public disclosure.
⚠Risky category by default
More 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.