Non-Toxic Sports Bras, ranked by PFAS grade
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
All 15 sports bras PFAS Authority has graded score below its 70 point pass mark for PFAS and other toxins, as of October 2026.
The full ranking is below, best-graded first, with every score linking to the evidence behind it. Nothing here clears our buy threshold yet, so the least-concerning options come first.
Are sports bras safe?
None of the 15 sports bras we graded come back low-concern on our screen. Our grades are model-based assessments built from published materials, ingredient lists, certifications and brand disclosures, not laboratory tests, so they say what we can evidence rather than that anything is safe.
Best graded sports bras here
- 1Allbirds Anytime Bralette Light Grey Xs 65 out of 100
- 2Allbirds Women's Intimates & Sleepwear Allbirds Trino Bralette 65 out of 100
- 3Allbirds Women's Natural Sports Bra 65 out of 100
Start here
The best non-toxic sports bras, ranked by grade
Buyer’s guide
What to look for in sports bras, and which brands grade best and worst
Why Allbirds Anytime Bralette Light Grey Xs grades highest here, and why that is not a pass
Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 1 product it beats, so you can see exactly where the 45 points between the top and the bottom of this sports bras ranking come from. Nothing in this category reaches our 70 point pass mark, so this is the shape of the field rather than a recommendation.
Top graded, and still below our pass mark
Made of Organic cotton blend with TENCEL lyocell.
- +30Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- +15No PFAS disclosure. No public statement from the brand about PFAS in this product.
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
35risk points in total, which is a grade of 65
What the grade does not fix. It still carries one risk factor, No PFAS disclosure. See the full breakdown.
What it still grades above, and why
What puts it behind. Waterproof / stain-resistant treatment, +35 points. Water-repellent coating treatments have historically used PFAS. The top-graded product carries no such factor.
Made of nylon/polyester blend with Dri-FIT moisture-wicking treatment.
- +35Waterproof / stain-resistant treatment
- +30Category baseline
- +15No PFAS disclosure
80risk points, a grade of 20
No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.
Which sports bras contain PFAS? Poor and Bad, we’d swap these
- Organic cotton blend with TENCEL lyocell
- We found no PFAS statement from the brand
- Elastane (spandex) degradation and leaching under heat
- Merino wool, recycled materials (Allbirds typical blend)
- We found no PFAS statement from the brand
- Heavy metals
3 hazards checked on this product, all on its full breakdown.
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- organic cotton blend, no water-repellent coating disclosed
- We found no PFAS statement from the brand
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
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- nylon, spandex blend; no water-resistant treatment disclosed
- We found no PFAS statement from the brand
- Heavy metals
4 hazards checked on this product, all on its full breakdown.
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- cotton primary; elastane blend for fit
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
3 hazards checked on this product, all on its full breakdown.
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- Nylon, spandex blend (standard performance fabric)
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
4 hazards checked on this product, all on its full breakdown.
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- nylon, spandex blend with standard elastic
- We found no PFAS statement from the brand
- Azo dyes and synthetic colorants
2 hazards checked on this product, all on its full breakdown.
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- Nylon/polyester blend with elastic
- We found no PFAS statement from the brand
- Azo dyes in synthetic textiles
3 hazards checked on this product, all on its full breakdown.
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- Nylon/polyester blend, no reported waterproof or stain-resist coating
- We found no PFAS statement from the brand
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
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- nylon, spandex blend
- We found no PFAS statement from the brand
- Spandex elastomer degradation and leaching
2 hazards checked on this product, all on its full breakdown.
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- Nylon/polyester blend with standard elastic
- We found no PFAS statement from the brand
- Azo dyes and synthetic dye residues
3 hazards checked on this product, all on its full breakdown.
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- Nulu (nylon blend)
- Azo dyes and synthetic colorants
3 hazards checked on this product, all on its full breakdown.
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- Nylon/polyester blend fabric, no waterproofing or stain treatment disclosed
- Formaldehyde / VOCs
3 hazards checked on this product, all on its full breakdown.
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- Nylon/elastane blend (synthetic athletic knit)
- Synthetic dye residues and skin contact allergens
3 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon- nylon/polyester blend with Dri-FIT moisture-wicking treatment
- Heavy metals
4 hazards checked on this product, all on its full breakdown.
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