Swim Alo X Frankies Cheeky One Piece Bathing Suit. Nwots. Small vs Women's Bottom Turn Racerback Bikini Top: which is safer?
Patagonia Women's Bottom Turn Racerback Bikini Top is the clear pick. Alo Yoga Swim Alo X Frankies Cheeky One Piece Bathing Suit. Nwots. Small carries a failing PFAS grade, and we never recommend buying a failing product.
Alo Yoga
Swim Alo X Frankies Cheeky One Piece Bathing Suit. Nwots. Small
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleFormaldehyde resins
PossibleSpandex degradation and leaching
PossibleSkin irritation from dyes or finishes
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 Formaldehyde resins, Spandex degradation and leaching and Skin irritation from dyes or finishes on the Alo Yoga and not on the Patagonia.
- We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Alo Yoga.
- The Alo Yoga is Nylon/spandex blend swimwear (typical for swim apparel) 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 →
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