Anytime Bralette Light Grey Xs vs Medium Support Sports Bra Nike Women's Swoosh: 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
PFAS grade
Good 65/100
Overall grade
Good 59/100
Verdict
Skip
Hazard flags
⚑ 1
Material
Organic cotton blend with TENCEL lyocell
Confidence
72%
PossibleElastane (spandex) degradation and leaching under heat
Nike
Medium Support Sports Bra Nike Women's Swoosh
PFAS grade
Good 65/100
Overall grade
Good 53/100
Verdict
Skip
Hazard flags
⚑ 3
Material
Nylon/polyester blend fabric, no waterproofing or stain treatment disclosed
Confidence
72%
PossibleFormaldehyde resins in dyes and finishes
PossibleAzo dyes and heavy-metal pigments
PossibleMicroplastic shedding during use
Where these two actually differ
- We flag Elastane (spandex) degradation and leaching under heat on the Allbirds and not on the Nike.
- We flag Formaldehyde resins in dyes and finishes, Azo dyes and heavy-metal pigments and Microplastic shedding during use on the Nike and not on the Allbirds.
- The Allbirds is Organic cotton blend with TENCEL lyocell where the Nike is Nylon/polyester blend fabric, no waterproofing or stain treatment disclosed, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
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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