PFAS score
COS · Water-Resistant Swimwear
Scuba Swimsuit
Lower concern, basic swimwear material with no known PFAS triggers, but COS offers no public PFAS transparency.
COS scuba swimsuits are typically made from standard nylon or polyester blends without advertised water-repellent or stain-resistant finishes that would suggest PFAS doping. However, COS does not publicly disclose PFAS or water-repellent coating treatment policy; typical swimsuit elastics may contain trace Teflon-family coating.
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Material
polyamide (nylon) or polyester blend
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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.
More water-resistant 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.