Oboz Women's Bridger Mid
Typical hiking boot with waterproofing; water-repellent coating treatment likely but unconfirmed.
Oboz makes no public PFAS disclosures for this model. Waterproof hiking boots commonly use water-repellent coating coatings that may contain PFAS, though Oboz's specific chemistry is unknown. Contact the brand directly for treatment details.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Leather/nubuck upper with polyurethane/synthetic waterproof treatment
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Oboz Women's Bridger Mid is made of, ingredients and materials
The Bridger Mid combines nubuck leather uppers with polyurethane or synthetic waterproof treatments, likely a water-repellent coating (water-repellent coating) coating applied to the exterior. Nubuck is sanded leather that breathes well but requires care; the PU treatments provide water resistance but are the likely source of PFAS compounds (per-fluorinated chemicals). The synthetic components are stable during normal wear, but the waterproofing chemistry is where environmental and persistence concerns concentrate.
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
Oboz does not confirm fluorine-free treatment. Typical nubuck hiking boots use legacy C6 or C8 water-repellent coating; migration to skin during wear is low but off-gassing and disposal contamination are documented concerns.
Source, ATSDR ↗Formaldehyde / VOCs
Nubuck leather finishing can involve aldehyde-based resins for durability and water resistance. Oboz does not specify tanning method. Off-gassing is typically minimal with leather (vs synthetic fabric) but present during initial cure and storage.
Source, ATSDR ↗Azo dyes in leather or synthetic components
Leather dyeing may involve azo compounds; no independent testing of this model is available. Risk is low during normal wear since dyes are fixed, but sweating or rain exposure can cause minimal migration in poorly finished leather.
Polyurethane degradation and VOC release
PU linings and adhesives can off-gas volatile organic compounds (solvents, isocyanates) during early use and storage. Adequate ventilation during first week of use reduces inhalation exposure. Degradation accelerates with heat and UV, not a concern in normal footwear use.
What’s reassuring
Antimony in synthetic materials (if polyester blend present)
No documentation of polyester in this model; nubuck and PU are primary materials. If linings or thread contain polyester, antimony catalyst residues are possible but not reported.
The full breakdown
The brand's record and disclosure
Oboz does not publicly disclose specific waterproofing chemistry or PFAS avoidance commitments on product pages or sustainability materials reviewed. The brand emphasizes durability and performance over transparency regarding hazardous coatings. No major recalls or controversies related to this model are on record, and Oboz maintains a general reputation for quality outdoor footwear, but chemical disclosure lags behind competitors like Salewa or Danner.
How it compares in its category
Most mid-range hiking boots in this price and performance tier use similar water-repellent coating systems, making the Bridger Mid representative rather than exceptional for chemical risk. Some competitors offer wax treatments or PFOA-free alternatives, though these are less common in synthetic-hybrid designs. The nubuck material itself is less risky than some Gore-Tex laminate footwear, which can off-gas more volatile compounds; leather construction is a moderate advantage here.
If you buy it
Store in cool, dry conditions and allow 24-48 hours air-dry after wet use rather than heating. Reapply nubuck protector every season; avoid aerosol products that may contain additional solvents. Replace if waterproofing visibly degrades or if the upper separates, as re-waterproofing is difficult. Do not expose to sustained heat sources, and avoid chlorine-based cleaners; mild soap and water is sufficient for maintenance.
What we don’t know
- Basis
- Model estimate, 40% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Oboz has made none
Formulations change between production runs, so check the current label. How we grade.
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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.