Perimeter 35 Backpack vs Wrought Iron Food Pack: which is safer?

Granite Gear Wrought Iron Food Pack is our pick: better on PFAS and on the overall hazard picture.

Granite Gear

Perimeter 35 Backpack

PFAS grade

F 20/100

Overall grade

F 0/100

Verdict

Skip

Hazard flags

⚑ 3

Material

nylon with water-repellent coating finish, unknown type

Confidence

45%

Possiblewater-repellent coating finish composition (PFAS vs. fluorocarbon-free)

PossibleMicrofiber shedding from synthetic polymer

LikelyDegradation of coating over time

Why this grade

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

Why this grade

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