Marmot · Waterproof Outdoor Gear
Marmot Keeler Backpack
Backpack with water-repellent coating. Marmot has not disclosed PFAS status.
Marmot backpacks typically use water-repellent coating coatings on nylon/polyester fabric. No public PFAS disclosure or third-party verification available for this model.
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Material
Nylon/polyester 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
The Keeler uses nylon and polyester fabrics treated with a water-repellent coating (water-repellent coating) finish. water-repellent coating coatings shed water but are typically applied as thin topical treatments separate from the base fabric, meaning they wear off over time and can be reapplied. Polyester itself is chemically stable in normal use, but the water-repellent coating finish chemistry is the primary concern here, as many conventional water-repellent coating treatments historically relied on PFAS compounds (though fluorine-free alternatives now exist).
The brand's record and disclosure
Marmot has not publicly disclosed the specific water-repellent coating chemistry used in the Keeler or made commitments to PFAS phase-out across its product line. The brand does not appear on major supplier transparency databases or environmental certifications like Bluesign or GOTS. Without formal disclosure, the water-repellent coating formulation status remains unknown, which is a material gap for consumers concerned about fluorinated treatments.
How it compares in its category
Outdoor backpack makers vary widely on water-repellent coating transparency. Brands like Patagonia and The North Face have made public PFAS reduction commitments and use fluorine-free water-repellent coating on many products. Marmot's silence places it in the middle-of-the-pack on disclosure rigor. Most conventional nylon packs carry similar water-repellent coating uncertainty unless the maker explicitly certifies otherwise.
If you buy it
Wash infrequently and use cool water to minimize coating wear and any potential leaching; avoid fabric softeners which degrade water-repellent coating. Do not machine dry on heat, as high temperatures can stress coatings. Plan to reapply commercial water-repellent coating treatments (fluorine-free options available) every 1-2 years depending on use intensity. If PFAS status becomes critical to your decision, contact Marmot directly to request water-repellent coating formulation details before purchase.
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.”
water-repellent coating degradation and unknown chemistry
Marmot has not disclosed whether the Keeler's water-repellent coating uses PFAS or fluorine-free chemistry. As the coating wears, its environmental and health implications depend entirely on formulation, creating a transparency gap rather than a confirmed hazard.
Azo dyes in polyester fabric
No specific recalls or public concerns documented for Marmot Keeler or brand-wide azo dye use. Polyester backpacks pose minimal risk here unless dyes migrate into skin contact, which is unlikely given exterior use and normal washing.
Antimony catalyst residue in polyester
Antimony is used as a catalyst in polyester production and can be present in trace amounts. No published data indicates Marmot products carry elevated antimony; standard polyester use poses negligible exposure risk in outdoor apparel.
Formaldehyde in fabric finishes
No known formaldehyde-releasing treatments reported in Marmot backpacks. Nylon and polyester backpacks are not typical vehicles for formaldehyde finishes, which are more common in wrinkle-resistant cotton textiles.
Microplastic shedding from nylon
Nylon fabric naturally sheds microfibers during washing. While this is a product-category issue rather than Marmot-specific, the Keeler will release small amounts of synthetic fibers into laundry water over its lifetime, adding to cumulative microplastic pollution.
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.
Safer alternatives in Waterproof Outdoor Gear
Patagonia
Refugio Day Pack 26L
recycled nylon with non-fluorinated water-repellent coating treatment
Lower PFAS concern. Patagonia claims non-fluorinated water-repellent coating on this pack.
⚠Waterproof or stain-proof treatment
More waterproof outdoor gear 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.