NRS · Waterproof Bags & Luggage
NRS Expedition DriDuffel Dry Bag
PFAS use common in waterproof dry bags; NRS stays silent.
This waterproof dry bag likely uses a water-repellent coating finish typical of the category, but NRS shares no information about whether it contains PFAS.
The better-graded swap
Salomon
Salomon Extended Totebag
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
PVC or TPU coated nylon fabric with water-repellent coating finish
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What NRS Expedition DriDuffel Dry Bag is made of, ingredients and materials
The NRS Expedition DriDuffel uses PVC or TPU-coated nylon fabric with a water-repellent coating (water-repellent coating) finish. The nylon substrate itself is inert, but the coating layer and water-repellent coating treatment are where chemical exposure risk concentrates. NRS does not publicly disclose whether the water-repellent coating is PFAS-based or fluorine-free, which is the primary unknowable hazard here. PVC and TPU coatings are generally considered stable when intact, but can degrade over years of UV exposure and thermal stress.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
water-repellent coating degradation and exposure
The water-repellent coating finish on this bag is likely fluorochemical-based, but NRS provides no breakdown. As coatings age, microcracking can occur, and the risk of ingestion or inhalation of coating particles during heavy use or storage is low but plausible. Actual chemical identity remains unknown.
PVC/TPU leaching under heat or moisture stress
PVC and TPU coatings can release plasticizers or oligomers if exposed to sustained moisture, high temperature, or mechanical stress. Risk is low in typical dry bag use (items are dry), but wet items stored inside warm conditions for extended periods could increase leaching potential.
VOC off-gassing from coating
New PVC or TPU coatings may emit volatile organic compounds for a few weeks after manufacture, particularly in warm, enclosed spaces. This is a temporary concern during initial unpacking and can be mitigated by airing the bag outdoors.
What’s reassuring
Formaldehyde / VOCs
No formaldehyde-resin finishing is typical for nylon substrate in dry bags, as this material is not apparel worn against skin. NRS does not disclose formaldehyde treatments, and none are on record for this product.
Source, ATSDR ↗Heavy metals
Nylon in commercial dry bags is usually solution-dyed or piece-dyed with approved colorants. No specific concerns for the NRS Expedition are documented, and the bag is not in skin contact.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
NRS (Northwest River Supplies) is an established outdoor gear manufacturer but does not publish detailed chemical disclosures for coatings or water-repellent coating treatments on their website or product documentation. No major recalls or chemical controversies are on record for this specific product line. The brand's silence on PFAS is consistent with much of the dry bag industry, where fluorochemical water-repellent coating remains widespread and rarely labeled. NRS does not appear to have committed to eliminating PFAS-based treatments as a corporate policy.
How it compares in its category
Most commercial dry bags rely on either PFAS-based water-repellent coating finishes (more durable, water-shedding) or fluorine-free alternatives like wax or silicone treatments (less durable, typically require reapplication). The NRS Expedition sits in the mid-range of the category by price and construction quality. Competitors like Oru Kayak and some Sea to Summit models now offer documented fluorine-free options, though they may require more frequent maintenance. Without coating transparency, the NRS bag is difficult to distinguish from typical PFAS-bearing dry bags.
If you buy it
Store in a cool, dry place away from direct sunlight to minimize coating degradation. Avoid prolonged heat exposure (e.g., leaving in a hot car or near heat sources), which can accelerate PVC/TPU embrittlement. Inspect the seams and fabric surface annually for cracking, flaking, or loss of water beading; these signal water-repellent coating failure, at which point reapplication or replacement is wise. Do not machine wash; hand-rinse with cool water and mild soap only. The bag itself will likely last 5-10 years, but the coating performance may decline sooner depending on storage conditions.
What is not known about PFAS in this product?
- Basis
- Model estimate, 42% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- NRS has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to NRS Expedition DriDuffel Dry Bag?
- Cordura nylon fabric
- We found no PFAS statement from the brand
- Heavy metals
- Polyester webbing and nylon
- Azo dyes in polyester webbing
4 hazards checked on this product, all on its full breakdown.
- Polypropylene shell, polyurethane foam, stainless steel hardware
- Polyurethane foam degradation and off-gassing
More waterproof bags & luggage 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.