Nike · Hiking Shoes & Trail Runners
Air Max SNDR Nike Women's
Skip until Nike discloses water-repellent coating treatment chemistry.
Nike does not publicly disclose PFAS use in Air Max footwear water-repellent coating coatings. Waterproof athletic shoes typically use fluorinated water repellents; exact chemistry unknown here.
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Material
synthetic textile upper, foam/rubber sole 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.
The full breakdown
What it's made of and why it matters
This shoe uses a synthetic textile upper (likely polyester or nylon blend) paired with foam midsole and rubber outsole, finished with a water-repellent coating (water-repellent coating) coating. The water-repellent coating finish is the critical unknown: manufacturers typically use PFAS-based fluorochemicals or, less commonly, non-fluorinated wax-based systems, but Nike has not publicly specified which chemistry is in this model. Synthetic uppers themselves are generally low-risk, but the water-repellent coating application and any adhesives used in assembly can be significant exposure pathways.
The brand's record and disclosure
Nike has faced public pressure on PFAS use in water-resistant apparel and footwear since 2020 but has not committed to full phase-out or published detailed water-repellent coating chemistry for individual products. The company has made vague sustainability pledges but does not voluntarily disclose PFAS treatment details for most shoe lines. No major recalls of Air Max models for PFAS or other chemical hazards are on record, but absence of recalls does not confirm absence of PFAS.
How it compares in its category
Women's athletic trainers with synthetic uppers and water-repellent coating finishes are standard market fare; Nike's price point and quality are competitive. Comparable brands (Adidas, New Balance, ASICS) similarly lack transparent water-repellent coating disclosures. Some premium or sustainability-focused brands (Allbirds, Veja) advertise PFAS-free or low-PFAS options, though typically at higher cost. This shoe is not an outlier in opacity but also not a leader in chemical transparency.
If you buy it
Wear with low moisture exposure initially to minimize dermal contact if PFAS-based water-repellent coating is present. Avoid machine washing, which can degrade the water-repellent coating and potentially release chemicals; clean with a damp cloth and air dry. Replace when midsole cushioning compresses noticeably (typically 300-500 miles of wear) or upper shows visible wear. Do not apply additional water-repellent sprays without verifying PFAS status of the spray product.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
PFAS in water-repellent coating finish (water-repellent coating)
Nike has not disclosed the chemistry of the water-repellent coating applied to this shoe. Standard industry practice for athletic footwear water-repellent coating uses PFOA or PFOS precursors or newer GenX chemicals, all of which can accumulate in blood and environment. Without manufacturer transparency, presence cannot be ruled out.
Azo dyes in synthetic textile upper
No specific reports of restricted azo dyes (carcinogenic amines) in Air Max SNDR have been published. Nike is a signatory to ZDHC Gateway, which restricts certain azo dyes, but individual product certification is not public. Risk is lower than in brands with no chemical management framework.
Antimony in polyester or flame retardants in foams
Antimony can be used as a catalyst in polyester synthesis; Nike does not disclose antimony content. Foam midsoles occasionally contain flame retardants, but modern athletic foam in major brands typically avoids legacy halogenated retardants. No established reports for this model.
Formaldehyde resins in adhesives and finishes
Shoe assembly involves adhesives and bonding agents that may contain urea-formaldehyde or melamine-formaldehyde resins. Nike does not publish adhesive specifications. Off-gassing risk is lower in athletic footwear than in furniture but cannot be excluded, especially in new pairs.
Microplastic shedding from sole and upper wear
All synthetic footwear sheds microfibers and microparticles during use. Nike Air Max models with foam midsoles and synthetic uppers contribute to environmental microplastic load. This is an environmental and indirect ingestion hazard, not acute personal toxicity, but is documented across the category.
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.
More hiking shoes & trail runners 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.