Women's Las Palmas Classic Stripe One-Piece Swimsuit vs Women's Bottom Turn Racerback Bikini Top: which is safer?
Patagonia Women's Bottom Turn Racerback Bikini Top is the clear pick. MIKOH Women's Las Palmas Classic Stripe One-Piece Swimsuit carries a failing PFAS grade, and we never recommend buying a failing product.
Mikoh
Women's Las Palmas Classic Stripe One-Piece Swimsuit
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleAzo dyes and disperse dyes
PossibleFormaldehyde-releasing finishes
PossibleFiber shedding and microplastic release
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 and disperse dyes, Formaldehyde-releasing finishes, Fiber shedding and microplastic release and Allergic contact dermatitis from dyes or finishes on the Mikoh and not on the Patagonia.
- We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Mikoh.
- The Mikoh is Nylon/polyester blend swimsuit 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: 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