PFAS score
Sweaty Betty · Sports Bras
Sweaty Betty Women's Power Medium Impact Sports Bra
Silent on PFAS; typical water-repellent coating sport bra carries moderate concern.
Sports bras commonly use water-resistant coatings that may contain PFAS; Sweaty Betty does not disclose treatment details. Consider asking the brand directly or choosing untreated alternatives if concerned.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
polyamide/nylon blend with water-repellent coating finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 45% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Sports Bras
Nike
Girls' Swoosh Sports Bra
nylon/polyester blend with elastane
Lower concern, basic athletic bra with no known PFAS treatment, but Nike provides no public disclosure.
⚠Risky category by default
Nike
Medium Support Sports Bra Nike Women's Swoosh
Nylon/polyester blend fabric, no waterproofing or stain treatment disclosed
Lower PFAS concern; standard sports bra with no waterproofing or chemical finishes typical of PFAS use.
⚠Risky category by default
Lululemon
Flow Y Sports Bras | Women's Bra Nulu Light Support, A–C Cups | Size 8 | Pink
Nulu (nylon blend)
Lower PFAS concern; natural fiber blend without performance coatings, but brand offers no transparency.
⚠Risky category by default
More sports bras grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.