HOKA · Running & Athletic Shoes
Women's HOKA Speedgoat 6 GTX
GTX membrane likely contains PFAS; Hoka does not disclose PFAS policy.
Hoka Speedgoat 6 GTX uses Gore-Tex, a Teflon-type coating-based waterproof membrane typically containing PFAS. Brand offers no public PFAS disclosure or commitment, limiting transparency.
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Material
Textile upper with Gore-Tex membrane, waterproof treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Women's HOKA Speedgoat 6 GTX is made of, ingredients and materials
The Speedgoat 6 GTX uses a textile upper (likely synthetic mesh or knit) bonded to a Gore-Tex membrane for waterproofing. Gore-Tex is a Teflon-family coating microporous film engineered to repel water while allowing vapor transmission; this waterproofing function is typically achieved using PFAS-based chemistry. The textile fibers themselves may be treated with dyes and finishing resins that introduce separate chemical hazards independent of the Gore-Tex layer.
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.
Formaldehyde / VOCs
Synthetic textile uppers may be treated with formaldehyde-based resins for wrinkle resistance, shape retention, or water repellency independent of Gore-Tex. No specific testing of this shoe model is on record; synthetic mesh footwear typically carries this risk.
Source, ATSDR ↗Azo dyes in colorants
The upper is dyed or printed; azo dyes are common in apparel and can cleave into carcinogenic amines under sweat, friction, or washing. Hoka does not specify dye class or Bluesign certification for this model.
Heavy metals
Textile pigments and synthetic dyes may contain lead, cadmium, or chromium as trace impurities or functional components. No third-party testing or brand declaration is available for the Speedgoat 6 GTX.
Source, FDA ↗Antimony in polyester fibers or lining
If the upper or lining uses polyester, antimony (a catalyst in polymerization) may be present as a residual. Typical levels in apparel are low, but no specific data is published for this shoe.
Membrane degradation and coating leaching over time
Gore-Tex membranes are durable but delaminate or lose water repellency over extended use or improper care. When the membrane fails, residual PFAS or adhesive chemicals may leach into sweat and skin during the degradation phase.
How is this PFAS grade calculated?
The brand's record and disclosure
Hoka (owned by Deckers) has not published a public PFAS reduction policy or commitment as of available records. The company does not disclose material composition or chemical testing results for individual shoe models. Hoka is not party to major industry initiatives (e.g., ZDHC Gateway, Bluesign) that would signal third-party chemical oversight. This silence is consistent with many footwear brands but leaves consumers without assurance of PFAS management.
How it compares in its category
Most waterproof running shoes use Gore-Tex or similar Teflon-family coating membranes; the Speedgoat 6 GTX is not unusual in this regard. Brands offering PFAS-free waterproof alternatives (membrane-based or wax/oil treatments) are rare in performance trail running. Non-waterproof versions of Hoka trail shoes exist but sacrifice weather protection. Among GTX trail shoes, disclosure and sustainability certifications vary widely; Hoka's silence puts it below leaders like Salomon on transparency.
If you buy it
Wash uppers gently in cool water and air dry; do not use heat or machines, which can degrade the membrane and increase leaching. Replace when tread or upper structure shows visible wear (typically 300-500 miles). Avoid harsh detergents or solvents that may strip treatments. Store in a cool, dry place away from direct sunlight to slow degradation of the textile and membrane bond.
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- HOKA has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Women's HOKA Speedgoat 6 GTX?
- Canvas upper, rubber sole
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- 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.