ToughSack Assorted Colors vs Expedition DriDuffel Dry Bag: which is safer?
Granite Gear ToughSack Assorted Colors is the clear pick. NRS Expedition DriDuffel Dry Bag carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Granite Gear
ToughSack Assorted Colors
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleHeavy metals in zippers or hardware
NRS
Expedition DriDuffel Dry Bag
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Possiblewater-repellent coating degradation and exposure
PossiblePVC/TPU leaching under heat or moisture stress
PossibleVOC off-gassing from coating
Where these two actually differ
- We flag Heavy metals in zippers or hardware on the Granite Gear and not on the NRS.
- We flag DWR coating degradation and exposure, PVC/TPU leaching under heat or moisture stress and VOC off-gassing from coating on the NRS and not on the Granite Gear.
- The Granite Gear is Cordura nylon fabric where the NRS is PVC or TPU coated nylon fabric with DWR finish, which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the Granite Gear is the one to buy.
- We are less certain about the NRS grade, at 42% confidence against 72%, because it discloses less.
Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More waterproof bags & luggage, see the full ranking