Anytime Bralette Light Grey Xs vs Women's Dri-FIT Padded Sports Bra: which is safer?

Allbirds Anytime Bralette Light Grey Xs is our pick, better on PFAS and on the overall hazard picture.

Our pick

Allbirds Anytime Bralette Light Grey Xs

Allbirds

Anytime Bralette Light Grey Xs

PFAS grade

Good 65/100

Overall grade

Good 59/100

Verdict

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Hazard flags

⚑ 1

Material

Organic cotton blend with TENCEL lyocell

Confidence

72%

PossibleElastane (spandex) degradation and leaching under heat

Nike Women's Dri-FIT Padded Sports Bra

Nike

Women's Dri-FIT Padded Sports Bra

PFAS grade

Bad 20/100

Overall grade

Bad 0/100

Verdict

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Hazard flags

⚑ 4

Material

nylon/polyester blend with Dri-FIT moisture-wicking treatment

Confidence

42%

PossibleAzo dyes and heavy metal colorants

PossibleAntimony in polyester

ReportedMicroplastic shedding during wash

Where these two actually differ

  • We flag Elastane (spandex) degradation and leaching under heat on the Allbirds and not on the Nike.
  • We flag Azo dyes and heavy metal colorants, Antimony in polyester, Microplastic shedding during wash and PFAS in Dri-FIT water-repellent finish (DWR) on the Nike and not on the Allbirds.
  • The Allbirds is Organic cotton blend with TENCEL lyocell where the Nike is nylon/polyester blend with Dri-FIT moisture-wicking treatment, which is most of the difference in these two grades.
  • The gap is 45 points, wide enough that this is not a close call, and the Allbirds is the one to buy.
  • We are less certain about the Nike grade, at 42% 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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