Dry Bag Co. · Waterproof Gear Storage Bags
Watershed Colorado Dry Duffel Bag
Unknown waterproof treatment; skip until coating disclosed.
Dry bags typically use waterproof coatings that may contain PFAS, but Watershed does not disclose treatment chemistry. Without transparency or third-party testing, PFAS risk cannot be assessed.
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
Waterproof-treated fabric, coating 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
Watershed Colorado duffels use fabric treated with an unspecified waterproof coating to achieve water resistance. The base fabric is typically nylon or similar synthetic; the coating chemistry is not publicly disclosed by the brand. Without knowing whether the coating contains Teflon-type coating (polytetrafluoroethylene), polyurethane, or silicone-based polymers, the full hazard profile cannot be assessed. Waterproof treatments in dry bags often rely on fluorinated compounds or PU resins, both of which carry distinct toxicity and durability concerns.
The brand's record and disclosure
Dry Bag Co. (Watershed) has not published detailed material specifications, manufacturing disclosures, or third-party safety certifications for this product line as of available public records. The brand maintains a direct-to-consumer model with minimal regulatory transparency compared to larger outdoor gear manufacturers. No recalls or formal safety complaints are documented for this specific duffel. The silent stance on waterproof coating chemistry represents a significant gap in consumer-facing safety information.
How it compares in its category
Waterproof duffels typically use one of three coating systems: Teflon-type coating-based (Teflon-family coating), polyurethane laminate, or silicone-treated. Watershed's opacity on this choice is more common among smaller outdoor brands than major manufacturers like Arc'teryx or Patagonia, which often disclose PFC-free or PFC-reduced status. The Colorado model occupies a mid-tier pricing position, suggesting a mid-tier coating likely, but this cannot be verified. Competitors with transparent material disclosure provide better risk assessment foundations for purchase decisions.
If you buy it
Store dry bag in a cool, well-ventilated space; avoid direct prolonged sunlight, which can degrade polymer coatings over time and potentially release volatile compounds. Do not machine-wash with high heat; hand-rinse with cool water and allow air-dry. Never use the bag for food storage or against bare skin for extended periods until coating composition is known. Before purchase, contact Dry Bag Co. directly requesting the waterproof treatment specification (Teflon-type coating-free, PU type, silicone, etc.); buying contingent on this disclosure is the most prudent approach.
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 and off-gassing
Unspecified coating may degrade under UV or thermal stress, potentially releasing volatile organic compounds (VOCs) or polymer fragments. Risk is low in normal outdoor use but higher if stored in heat or subjected to abrasion.
Teflon-type coating/Teflon-family coating fume inhalation if overheated
If the coating contains Teflon-type coating and the bag is accidentally exposed to high heat (near flame, direct stovetop, or extreme sunlight), thermal decomposition of Teflon-family coating can release fumes. Risk is minimal in typical use but non-zero without known composition.
Polyurethane degradation and VOC release
If coating is PU-based, prolonged storage in warm conditions or contact with solvents may accelerate hydrolysis and VOC emission. New bags sometimes emit a chemical smell consistent with PU off-gassing; this typically diminishes over time.
Microplastic shedding from coating wear
No published data on micro-scale coating particle release from Watershed duffels specifically. Rubbing or abrasion of coated fabrics can theoretically release microplastic fragments, but frequency and quantity are undocumented for this product.
Nylon fabric sensitization or contact dermatitis
Nylon base fabric itself is inert and non-allergenic in most users. Risk applies only if residual dyes or finishing chemicals (e.g., formaldehyde resins) remain in the fabric; Watershed does not disclose finishing chemistry.
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.