Coverage Square Neck 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. Hunza G Coverage Square Neck One-Piece carries a failing PFAS grade, and we never recommend buying a failing product.
Hunza G
Coverage Square Neck One-Piece
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
ReportedFluorinated water-repellent coating (PFAS precursor)
PossibleAzo dyes in pigmentation
PossibleMicroplastic shedding from nylon
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 Fluorinated DWR coating (PFAS precursor), Azo dyes in pigmentation, Microplastic shedding from nylon and Contact dermatitis from residual chemical finishes on the Hunza G and not on the Patagonia.
- We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Hunza G.
- The Hunza G is Nylon blend with DWR finish (likely fluorinated) 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.
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