Anytime Bralette Light Grey Xs vs Flow Y Sports Bras Women's Bra Nulu Light Support, A, C Cups: 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

Skip

Hazard flags

⚑ 1

Material

Organic cotton blend with TENCEL lyocell

Confidence

72%

PossibleElastane (spandex) degradation and leaching under heat

lululemon Flow Y Sports Bras Women's Bra Nulu Light Support, A, C Cups

Lululemon

Flow Y Sports Bras Women's Bra Nulu Light Support, A, C Cups

PFAS grade

Good 65/100

Overall grade

Good 53/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Nulu (nylon blend)

Confidence

72%

PossibleAzo dyes and synthetic colorants

PossibleSpandex degradation and microfiber shedding

PossibleContact dermatitis and fragrance/dye sensitivity

Where these two actually differ

  • We flag Elastane (spandex) degradation and leaching under heat on the Allbirds and not on the Lululemon.
  • We flag Azo dyes and synthetic colorants, Spandex degradation and microfiber shedding and Contact dermatitis and fragrance/dye sensitivity on the Lululemon and not on the Allbirds.
  • The Allbirds is Organic cotton blend with TENCEL lyocell where the Lululemon is Nulu (nylon blend), 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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