Crossover High Waisted Bikini Bottom vs Women's Bottom Turn Racerback Bikini Top: which is safer?
Patagonia Women's Bottom Turn Racerback Bikini Top is the clear pick. Aerie Crossover High Waisted Bikini Bottom carries a failing PFAS grade, and we never recommend buying a failing product.
Aerie
Crossover High Waisted Bikini Bottom
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes in synthetic textiles
PossibleSpandex elastomer degradation and microfiber shedding
PossibleFormaldehyde resins in fabric finishing
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 Azo dyes in synthetic textiles, Spandex elastomer degradation and microfiber shedding, Formaldehyde resins in fabric finishing and Allergens in synthetic textiles (contact irritation) on the Aerie and not on the Patagonia.
- We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Aerie.
- The Aerie is Nylon/spandex blend (standard swimwear fabric) 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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