Manresa 33L Backpack vs Alpaca Gear Box Adventure Kit Backpack: which is safer?
Gregory Alpaca Gear Box Adventure Kit Backpack is our pick: better on PFAS and on the overall hazard picture.
Columbia
Manresa 33L Backpack
PFAS grade
F 20/100
Overall grade
F 12/100
Verdict
Skip
Hazard flags
⚑ 2
Material
nylon with water-repellent coating water-repellent coating
Confidence
45%
Possiblewater-repellent coating degradation and reapplication risk
PossibleMicroplastics shedding
Our pick
Gregory
Alpaca Gear Box Adventure Kit Backpack
PFAS grade
F 20/100
Overall grade
F 16/100
Verdict
Skip
Hazard flags
⚑ 1
Material
Alpaca fiber/nylon blend with water-repellent coating finish
Confidence
45%
Possiblewater-repellent coating (water-repellent coating) finish - potential PFAS
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 portable outdoor gear bags: see the full ranking