Nano Backpack vs Asher 24L Backpack: which is safer?
Kelty Asher 24L Backpack is our pick: better on PFAS and on the overall hazard picture.
Gregory
Nano Backpack
PFAS grade
F 20/100
Overall grade
F 12/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Nylon/polyester with water-repellent coating water-resistant finish
Confidence
45%
Possiblewater-repellent coating (water-repellent coating) finish composition
PossibleCoating degradation and microfiber shedding
Our pick
Kelty
Asher 24L Backpack
PFAS grade
F 20/100
Overall grade
F 16/100
Verdict
Skip
Hazard flags
⚑ 1
Material
Nylon/polyester with water-repellent coating (water-repellent coating) finish
Confidence
42%
Possiblewater-repellent coating (water-repellent coating) coating composition (PFAS source unknown)
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