PFAS score
Peak Design · Backpacks
Peak Design Outdoor Backpack 25L
Moderate concern, waterproof outdoor gear often uses PFAS, and Peak Design does not disclose treatment chemistry.
Peak Design's 25L backpack uses synthetic fabrics with water-repellent coating (water-repellent coating) finish, a common vector for PFAS in outdoor apparel. The brand provides no public disclosure of whether the coating is PFAS-based or PFAS-free.
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Material
nylon/polyester with water-repellent coating water-resistant treatment
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.
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 Backpacks
Everlane
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Canvas (cotton blend)
Lower-concern canvas option; no PFAS trigger signals, but brand offers no transparency.
⚠Risky category by default
Everlane
The Canvas Backpack - Black OS
Canvas cotton blend
Lower PFAS concern for uncoated canvas backpack; no water-repellent coating treatment typical of this product line.
⚠Risky category by default
Able Carry
Thirteen Daybag
Ballistic nylon, canvas, woven textile
Lower PFAS concern; typical durable pack without inherent PFAS triggers, but brand doesn't disclose water-repellent coating treatment details.
⚠Risky category by default
More backpacks 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.