PFAS score
Rab · Sleeping Bags
Rab Expedition 1400 Down Sleeping Bag
Lower concern, but Rab does not publicly disclose PFAS status on this model.
The Expedition 1400 uses natural down insulation (low PFAS risk) and nylon outer shell. Most outdoor sleeping bags receive water-repellent coating (water-repellent coating) finishes, which historically relied on PFAS but increasingly use fluorine-free alternatives.
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Material
Down-filled with nylon shell; water-repellent coating treatment likely
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 62% 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 Sleeping Bags
Enlightened Equipment
Convert Sleeping Quilt
Nylon or polyester shell with synthetic insulation
Lower concern, no inherent PFAS trigger, but brand provides no transparency.
⚠Risky category by default
Zpacks
Merino Wool Ultralight Sleeping Bag Liner
Merino wool, no applied water-repellent coating mentioned
Lower concern, merino wool liner with no reported water-repellent treatment is unlikely to contain PFAS.
⚠Risky category by default
Outdoor Vitals
Sleeping Bag Liner
Polyester or nylon fabric blend (no waterproof water-repellent coating typical)
Lower concern; simple liner without water-repellent finish reduces PFAS exposure risk.
⚠Risky category by default
More sleeping bags 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.