Wrought Iron Food Pack vs Big River Dry Backpack: which is safer?
Granite Gear Wrought Iron Food Pack is our pick: better on PFAS and on the overall hazard picture.
Our pick
Granite Gear
Wrought Iron Food Pack
PFAS grade
D 65/100
Overall grade
F 57/100
Verdict
Skip
Hazard flags
⚑ 2
Material
nylon fabric pack, likely uncoated or minimally treated
Confidence
72%
PossibleFluorinated water-repellent coating (PFAS-adjacent concern)
PossibleVOC off-gassing from adhesives or polyurethane laminate
Sea to Summit
Big River Dry Backpack
PFAS grade
F 20/100
Overall grade
F 0/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Polyester ripstop with water-repellent coating treatment
Confidence
45%
Likelywater-repellent coating degradation and durability
PossibleMicroplastic shedding from wear
Both products run through the same public rubric: 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 outdoor bags: see the full ranking