Women's V-Neck Tankini Top vs Women's Bottom Turn Racerback Bikini Top: which is safer?

Patagonia Women's Bottom Turn Racerback Bikini Top is the clear pick. Nike Women's V-Neck Tankini Top carries a failing PFAS grade, and we never recommend buying a failing product.

Nike Women's V-Neck Tankini Top

Nike

Women's V-Neck Tankini Top

PFAS grade

Good 65/100

Overall grade

Poor 25/100

Verdict

Skip

Hazard flags

⚑ 5

Material

Nylon/polyester blend (typical tankini construction)

Confidence

72%

PossibleAzo dyes and heavy metals in synthetic fabric dyes

PossibleFormaldehyde resins in finishing treatments

LikelyMicroplastic shedding during washing and wear

Our pick

Patagonia Women's Bottom Turn Racerback Bikini Top

Patagonia

Women's Bottom Turn Racerback Bikini Top

PFAS grade

Excellent 90/100

Overall grade

Excellent 86/100

Verdict

Buy

Hazard flags

⚑ 1

Material

Nylon/polyester blend with elastane (standard swimwear)

Confidence

72%

PossibleElastane (spandex) degradation under heat or chlorine

Where these two actually differ

  • We flag Azo dyes and heavy metals in synthetic fabric dyes, Formaldehyde resins in finishing treatments, Microplastic shedding during washing and wear and Antimony in polyester on the Nike and not on the Patagonia.
  • We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Nike.
  • The Nike is Nylon/polyester blend (typical tankini construction) where the Patagonia is Nylon/polyester blend with elastane (standard swimwear), which is most of the difference in these two grades.
  • The gap is 25 points, wide enough that this is not a close call, and the Patagonia is the one to buy.

Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

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