Women's Tugless Monokini Swim Dress Swimsuit vs Women's Bottom Turn Racerback Bikini Top: which is safer?

Patagonia Women's Bottom Turn Racerback Bikini Top is the clear pick. Lands' End Women's Tugless Monokini Swim Dress Swimsuit carries a failing PFAS grade, and we never recommend buying a failing product.

Lands' End Women's Tugless Monokini Swim Dress Swimsuit

Lands' End

Women's Tugless Monokini Swim Dress Swimsuit

PFAS grade

Bad 20/100

Overall grade

Bad 2/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Nylon/polyamide blend with water-repellent coating (water-repellent coating) finish

Confidence

45%

ReportedPFAS in water-repellent coating finish (graded separately; context only)

PossibleAzo dyes or heavy metals in colorants

PossibleMicroplastics or fiber shedding

Our pick

Patagonia Women's Bottom Turn Racerback Bikini Top

Patagonia

Women's Bottom Turn Racerback Bikini Top

PFAS grade

Excellent 90/100

Overall grade

Excellent 86/100

Verdict

Buy

Hazard flags

⚑ 1

Material

Nylon/polyester blend with elastane (standard swimwear)

Confidence

72%

PossibleElastane (spandex) degradation under heat or chlorine

Where these two actually differ

  • We flag PFAS in DWR finish (graded separately; context only), Azo dyes or heavy metals in colorants and Microplastics or fiber shedding on the Lands' End and not on the Patagonia.
  • We flag Elastane (spandex) degradation under heat or chlorine on the Patagonia and not on the Lands' End.
  • The Lands' End is Nylon/polyamide blend with durable water repellent (DWR) finish 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.
  • We are less certain about the Lands' End grade, at 45% confidence against 72%, because it discloses less.

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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