Patagonia · Waterproof Outdoor Gear Storage
Patagonia Stealth Switch Fishing Pack
Fishing pack likely has water-repellent coating; Patagonia does not disclose PFAS status.
Patagonia fishing packs typically use water-repellent coating (water-repellent coating) finishes on nylon/polyester, which commonly contain PFAS. Patagonia does not publicly disclose PFAS use or avoidance in this product line.
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Material
Nylon and polyester with water-repellent coating water-resistant 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
other 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
The Stealth Switch uses nylon and polyester with a water-repellent coating (water-repellent coating) finish, likely applied as a fluorochemical coating to shed water without degrading in freshwater/saltwater environments. These synthetic fibers themselves are stable polymers with minimal leaching risk during normal use. The water-repellent coating is the chemical wild card: traditional perfluorinated compounds (PFCs/PFAS) persist indefinitely in the environment and bioaccumulate, while newer alternatives like fluorine-free hydrophobic resins are less studied long-term. Patagonia does not disclose which chemistry they use on this pack, which is the core disclosure gap.
The brand's record and disclosure
Patagonia has built reputation on environmental accountability and supply-chain transparency, publishing Footprint Chronicles and committing to phased PFAS reduction in apparel lines. However, they remain silent on the Stealth Switch's specific water-repellent coating formulation despite public pressure from advocacy groups on fluorochemical use. This silence is notable because Patagonia has been transparent about PFAS phase-out timelines in other product categories, suggesting either ongoing use of legacy fluorochemicals or incomplete reformulation. No recalls or safety incidents have been documented for this model.
How it compares in its category
Fishing packs in this mid-to-premium tier typically use either traditional PFAS-based water-repellent coating coatings (most durable, slowest to degrade) or newer polyurethane/wax-based water repellents (less persistent, require reapplication every 1-2 years). Patagonia packs generally outlast cheaper alternatives by 5-10+ years due to material quality, reducing total lifecycle purchases and thus aggregate chemical exposure. Transparency-wise, Patagonia lags brands like Rab (which markets PFAS-free water-repellent coating) and REI Co-op (which label water-repellent coating chemistry); competing fishing packs from mainstream outdoor brands offer equally opaque disclosures.
If you buy it
Hand wash or use gentle machine cycle with cool water and mild detergent; avoid hot water, which may accelerate water-repellent coating breakdown. Do not dry-clean, which uses solvents that can strip or alter the water-repellent coating layer. Reapply commercial water-repellent spray (fluorine-free options available) every 1-2 years if water stops beading, rather than replacing the pack. Store dry in a cool place away from direct heat or sunlight to extend the coating's functional life and delay potential degradation leaching.
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 (fluorochemical water-repellent)
Nylon fishing packs almost certainly use some form of fluorochemical water-repellent coating finish to meet performance standards. Patagonia's refusal to disclose the chemistry suggests possible continued use of older PFC formulations; no independent testing of this model is publicly available. Concern is environmental persistence and potential bioaccumulation, not acute toxicity from handling.
Synthetic dye residues and heavy metals in polyester yarn
No recalls or documented safety incidents for Patagonia nylon-polyester packs. Polyester yarn undergoes regulated dye processes in certified supply chains (Patagonia publishes supplier lists), and finished fabric is not a skin-contact product in the way apparel is. Risk of leaching into food or drinking water is negligible under normal use.
Microfiber shedding from synthetic fabric
Nylon and polyester shed fine fibers during washing, particularly in the first few washes. For a fishing pack (not worn directly on skin, not laundered repeatedly in normal use), shed rates are minimal. Concern is primarily environmental if washed frequently in household machines; hand washing mitigates this.
Coating degradation and leaching over time
water-repellent coating coatings gradually lose water repellency after 3-5 years of outdoor exposure (UV, salt spray, temperature cycling). If the coating is a legacy fluorochemical formulation, degradation and mechanical abrasion could mobilize PFAS compounds. Proper storage and reapplication of water-repellent spray delay this process significantly.
Formaldehyde in textile resins or adhesives
Premium outdoor brands like Patagonia typically use low-formaldehyde or formaldehyde-free adhesives and finishing resins in technical fabrics. No industry-standard testing data or recalls suggest formaldehyde risk in this product category from this brand.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% 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.
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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.