Dry Bag Co. · Waterproof Gear Storage Bags
Wren Dry Bag Duffel
Skip until brand discloses waterproof treatment chemistry
Dry bag duffels require water-resistant coatings, traditionally PFAS-based. Dry Bag Co. provides no public disclosure of coating type or PFAS status, making assessment impossible.
The safe swap
Pelican
Pelican 1595 Air Travel Case
85/100 safety
Same rubric that flunked this product. The swap earned its B.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Fabric with waterproof coating, type unspecified
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 Wren Dry Bag Duffel uses fabric with an unspecified waterproof coating. Waterproof coatings on textiles are typically achieved via PFAS-based treatments (like Teflon-type coating or water-repellent coating finishes) or less common non-fluorinated alternatives; without manufacturer disclosure, the chemistry is unclear. The coating's durability and leaching potential depend on its resin type and cure process, which remain undocumented here.
The brand's record and disclosure
Dry Bag Co. has not publicly disclosed the chemistry of its waterproof treatments or engaged in third-party certification for hazardous substance management. No recalls, safety complaints, or independent testing results are on record for this product. The brand's silence on PFAS and coating ingredients is a transparency gap typical of smaller outdoor gear makers, but does not confirm harm.
How it compares in its category
Dry bags occupy a niche where waterproofing is essential, making fluorinated coatings historically common across the category. Competitors including larger brands (Ortlieb, Sea to Summit) have begun publishing PFAS-free or third-party certified options, raising the disclosure standard. Budget-tier brands like Wren often lag on transparency, though material durability and leaching risk remain comparable to peers absent documented failures.
If you buy it
Dry bags are low-skin-contact items (used for storage, not worn), which reduces direct exposure routes. Inspect the coating before use and avoid prolonged contact with food or water you plan to drink if the coating shows degradation or odor. Do not heat or microwave contents inside the bag. Wash externally with mild soap and air dry; replace if the waterproof layer cracks, peels, or develops chemical odor over time.
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.”
Waterproof coating degradation
Unspecified coating composition means risk profile for breakdown into leachables is unquantified. Flex-stress from packing, UV exposure, and moisture cycling can degrade polymeric coatings; replacement triggers should be visual (peeling, crazing) or odor-based.
Formaldehyde-based fabric finishes
Dry Bag Co. has not disclosed use of formaldehyde-releasing resins in the base textile or coating. No specific complaints or test data exist for this product, but synthetic fabrics sometimes carry formaldehyde-containing dyes or wrinkle-resistant treatments as standard practice in the industry.
Volatile organic compounds (VOCs) from coating off-gassing
Polyurethane and acrylic waterproof coatings can off-gas solvents, especially when new or when warm. No reported incidents for this brand, but initial air exposure or storage in hot conditions may produce detectable odor; ventilation during unpacking is advisable.
Azo dyes in fabric
Synthetic dry bag fabrics may use azo dyes, some of which release carcinogenic amines under reductive conditions. No test results or complaints are on record; risk is typical for untested outdoor gear at this price tier.
Coating leaching into stored contents
If the waterproof layer contacts stored food, drinking water, or skin for extended periods and the coating is not fully cured or becomes degraded, leaching of unreacted monomers or solvents is theoretically possible. Risk is mitigated by the bag's primary use (storage of gear, not consumables), but not eliminated without coating chemistry disclosure.
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.
Safer alternatives in Waterproof Gear Storage Bags
Pelican
1595 Air Travel Case
Polypropylene shell, polyurethane foam, stainless steel hardware
Lower concern. Polypropylene case with no water-repellent treatment evident.
⚠Brand says nothing about PFAS
More waterproof gear storage 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.