Brooks · Running & Athletic Shoes
Brooks Women's Adrenaline GTS 24 Weatherized
Weatherized running shoe; PFAS risk unclear, Brooks lacks disclosure.
Brooks does not disclose PFAS use in this weatherproofed shoe. water-repellent coating treatments commonly contain PFAS, but Brooks provides no transparency on their specific chemistry.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Mesh, synthetic textile upper with water-repellent coating-treated weatherized coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
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.
What Brooks Women's Adrenaline GTS Weatherized is made of, ingredients and materials
The Adrenaline GTS 24 Weatherized uses a mesh synthetic upper (likely polyester or nylon) with a water-repellent coating (water-repellent coating) surface treatment applied to the textile. water-repellent coating coatings are historically the primary consumer source of PFAS exposure in apparel, as these long-chain fluorinated compounds bond to fibers to shed water without degrading. The shoe also contains polyester elements typical of running footwear, which do not pose known hazards from the polyester itself but can off-gas volatile organic compounds during manufacturing and initial use.
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
PFAS
Weatherized running shoes routinely contain legacy or contemporary PFAS compounds in the water-repellent coating. Brooks does not disclose which chemistry is used (PFOA, PFOS, GenX, or alternatives), so consumer exposure risk cannot be quantified. This is the primary non-wear hazard in this product.
Source, ATSDR ↗Microfiber shedding during wear and wash
All synthetic mesh shoes shed microfibers; the weatherized coating may accelerate this in early use as it breaks down. This is a wear-phase and environmental concern rather than a direct health hazard to the wearer, but washing in a mesh bag can reduce microplastic release.
What’s reassuring
Azo dyes in synthetic textiles
No recalls or public reports of restricted azo dyes (such as those producing benzidine or other carcinogens) in Brooks shoes. Standard footwear industry compliance with EU and US textile dye restrictions appears to be met, though independent testing is not routinely disclosed.
Formaldehyde / VOCs
No evidence that Brooks applies formaldehyde-releasing resin finishes to mesh uppers in this model. Modern athletic mesh typically uses non-formaldehyde adhesives and dyes, and Brooks does not appear on any list of brands with formaldehyde contamination issues in footwear.
Source, ATSDR ↗Antimony in polyester components
Antimony trioxide is used as a catalyst in polyester manufacture but residual levels in finished footwear are typically below migration thresholds. No specific hazard flag exists for Brooks shoes; this remains a category-wide concern only at extremely high residual concentrations, which are rare in athletic footwear.
How is this PFAS grade calculated?
The brand's record and disclosure
Brooks has not publicly committed to PFAS phase-out or disclosed whether this shoe uses legacy high-chain PFAS or newer alternatives like GenX or other short-chain compounds. The company does not appear on lists of brands with formal PFAS elimination commitments (such as those tracked by Clean Clothing Campaign or ZDHC). Brooks has focused sustainability messaging on recycling and supply chain labor but remains silent on fluorochemical use, which is a gap compared to competitors like Salomon and Merrell that have made explicit commitments.
How it compares in its category
Most weatherized running shoes in this price and performance tier use water-repellent coating coatings; non-fluorinated waterproofing alternatives (wax, silicone, or acrylic-based treatments) exist but are less durable and more common in casual or specialty brands. Brooks' lack of transparency on PFAS places it behind mid-tier competitors who have adopted ZDHC-certified or PFOA-free formulations. The shoe is otherwise standard for the category in textile composition and does not rely on hazardous dyes, antimony, or formaldehyde-based finishes at levels known to trigger concern.
If you buy it
Wash separately in cold water and air-dry to minimize microfiber shedding and preserve the water-repellent coating. Do not machine dry, iron, or expose to heat above 60 degrees Celsius, as this can degrade the synthetic upper and may alter any chemical finishes. Replace when the mesh compresses or the midsole loses responsiveness, typically after 300-500 miles of running. Store in a cool, dry place; the water-repellent coating will slowly lose water-repellency over time and after repeated laundering, which is normal and not a safety concern.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Brooks has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Brooks Women's Adrenaline GTS 24 Weatherized?
- Canvas upper, rubber sole
- We found no PFAS statement from the brand
- Azo dyes in canvas
2 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Canvas, rubber sole
- We found no PFAS statement from the brand
- Azo dyes and synthetic dyes
4 hazards checked on this product, all on its full breakdown.
Find an alternative on Amazon
- Mesh upper, Fresh Foam midsole, rubber outsole
- We found no PFAS statement from the brand
- Azo dyes and color-based toxins
2 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonMore running & athletic shoes 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.