Women's Bottom Turn Racerback Bikini Top vs Campo Bikini Bottom: which is safer?
Patagonia Women's Bottom Turn Racerback Bikini Top is the clear pick. Reformation Campo Bikini Bottom carries a failing PFAS grade, and we never recommend buying a failing product.
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
Reformation
Campo Bikini Bottom
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleSpandex/elastane sensitization and degradation
PossibleMicroplastic shedding from synthetic fiber
PossibleAllergic contact dermatitis from dyes or residual surfactants
Where these two actually differ
- We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Reformation.
- We flag Spandex/elastane sensitization and degradation, Microplastic shedding from synthetic fiber and Allergic contact dermatitis from dyes or residual surfactants on the Reformation and not on the Patagonia.
- The Patagonia is Nylon/polyester blend with elastane (standard swimwear) where the Reformation is Recycled nylon (primary); standard swimwear construction, 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: 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 →
More swimwear: see the full ranking