Diadora · Running & Athletic Shoes
Diadora Men's Mythos Blushield Vigore 3
Running shoe with waterproofing, PFAS risk unclear from brand disclosure.
Diadora does not disclose PFAS status for this shoe. Waterproof treatments commonly use PFAS; no testing data available to confirm or rule out.
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Material
Mesh textile upper with waterproof treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
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.
Azo dyes in synthetic mesh and overlays
Synthetic textile uppers may contain azo dyes unless explicitly certified otherwise. Diadora does not publicly declare azo-dye restrictions for this model. Risk is primarily occupational (manufacturing) and minimal for end-user skin contact under normal wear.
Formaldehyde / VOCs
Mesh textiles often contain formaldehyde-based resins for crease resistance and shape retention. No specific testing or certification is on record for this shoe. Outgassing is typically low after initial manufacture and washing; ventilation during first few wears reduces any residual exposure.
Source: ATSDR ↗Synthetic polymer degradation and microfiber shedding
All synthetic mesh running shoes shed microfibers during use and laundering. This is a documented environmental concern across the category but not a direct health hazard to the wearer. Washing bags designed to capture microfibers can reduce environmental impact.
water-repellent coating durability and reapplication safety
The waterproofing treatment will degrade over time and may be reapplied by consumers using commercial water-repellent coating sprays, some of which contain PFAS or solvents with inhalation risk. Diadora does not specify which water-repellent coating chemistry is used or recommend safe reapplication methods.
What’s reassuring
Polyurethane midsole off-gassing and VOCs
Polyurethane foam midsoles can release volatile organic compounds (VOCs) during the first week of wear. No specific off-gassing data or complaints are on record for this model; ventilation during initial use minimizes any exposure.
The full breakdown
What it's made of and why it matters
The Mythos Blushield Vigore 3 features a mesh textile upper combined with a waterproofing treatment, likely a water-repellent coating (water-repellent coating) coating. Mesh uppers are breathable and reduce bulk but rely on chemical treatment to shed water; this treatment is the primary source of potential concern in this shoe. The shoe also contains synthetic overlays, midsole foam (typically polyurethane or EVA), and rubber outsole components, each with their own material profile.
The brand's record and disclosure
Diadora has not publicly committed to PFAS elimination or transparent disclosure of waterproofing chemistry in their performance footwear lines. The brand does not appear on major industry transparency databases for restricted substance management. No major recalls or documented chemical hazard incidents have been widely reported for this specific model. Overall, Diadora's communication on restricted substances lags behind leading athletic brands in the category.
How it compares in its category
Running shoes with mesh uppers and waterproofing are standard across mid-tier athletic brands. Many competitors (Nike, Adidas, Brooks) have begun disclosing water-repellent coating chemistry or moving to PFOA-free formulations, while Diadora's stance remains opaque. This shoe sits in the mainstream category; it is neither a known leader in safer chemistry nor a category outlier. Shoes without water-repellent treatment or with explicit PFAS-free certification represent lower-risk alternatives if waterproofing is not critical.
If you buy it
Wash the shoe in lukewarm water by hand rather than machine washing to extend the water-repellent coating lifespan and minimize shedding of treatment chemicals into wastewater. Avoid prolonged heat exposure (dishwasher, direct sunlight, heat drying) which can degrade synthetic materials and coatings. Replace the shoe when mesh shows visible wear, separation, or loss of water repellency (typically 300-500 miles of use). Store in a cool, dry place; inspect the upper for cracking or delamination every few months of regular use.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Diadora has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Running & Athletic Shoes
New Balance
Women's Fresh Foam Arishi v4 Shoes
Mesh upper, Fresh Foam midsole, rubber outsole
Azo dyes and color-based toxins
Limited concern
Antimony in polyester
Limited concern
Standard athletic shoe with no known PFAS triggers, but no brand disclosure.
⚠Risky category by default
Diadora
Atomo V7000-2
Textile fabric, likely polyester or nylon blend
Azo dyes and synthetic dyes
Limited concern
Formaldehyde / VOCs
Limited concern
Antimony in polyester fibers
Limited concern
Adhesive and rubber off-gassing
Limited concern
No public PFAS disclosure; lower concern but unverified.
⚠Risky category by default
More 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.