Nano Backpack vs Asher Backpack: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
Gregory
Nano Backpack
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Possiblewater-repellent coating (water-repellent coating) finish composition
PossibleCoating degradation and microfiber shedding
Kelty
Asher Backpack
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
Possiblewater-repellent coating leachables (fluorocarbon-based or unknown chemistry)
PossibleNylon polymer degradation and microfiber shedding
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 gear: see the full ranking