Anytime Bralette Light Grey Xs vs Women's Train Free 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
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
Athleta
Women's Train Free Sports Bra
PFAS grade
Good 65/100
Overall grade
Good 57/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Nylon/polyester blend, no reported waterproof or stain-resist coating
Confidence
72%
PossibleAzo dyes and heavy metals in pigments
PossibleMicrofiber shedding during laundering
Where these two actually differ
- We flag Elastane (spandex) degradation and leaching under heat on the Allbirds and not on the Athleta.
- We flag Azo dyes and heavy metals in pigments and Microfiber shedding during laundering on the Athleta and not on the Allbirds.
- The Allbirds is Organic cotton blend with TENCEL lyocell where the Athleta is Nylon/polyester blend, no reported waterproof or stain-resist coating, 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 →
More sports bras, see the full ranking