Women's Swim Ribbed Texture U-Back Low Leg One Piece 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 Swim Ribbed Texture U-Back Low Leg One Piece carries a failing PFAS grade, and we never recommend buying a failing product.
Nike
Women's Swim Ribbed Texture U-Back Low Leg One Piece
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePFAS in water-repellent coating finish
PossibleMicroplastics from fiber shedding
Our pick
Patagonia
Women's Bottom Turn Racerback Bikini Top
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleElastane (spandex) degradation under heat or chlorine
Where these two actually differ
- We flag PFAS in DWR finish and Microplastics from fiber shedding 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 Polyester with DWR finish where the Patagonia is Nylon/polyester blend with elastane (standard swimwear), which is most of the difference in these two grades.
- The gap is 70 points, wide enough that this is not a close call, and the Patagonia is the one to buy.
- We are less certain about the Nike grade, at 35% confidence against 72%, because it discloses less.
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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