NRS Tuff Sack Dry Bag vs Ultimate Dry Sack 3-Pack: which is safer?

Outdoor Products Ultimate Dry Sack 3-Pack is our pick: better on PFAS and on the overall hazard picture.

MSR

NRS Tuff Sack Dry Bag

PFAS grade

F 20/100

Overall grade

F 0/100

Verdict

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Hazard flags

⚑ 4

Material

Vinyl tarpaulin or PVC with water-repellent coating

Confidence

45%

Possiblewater-repellent coating composition (fluorinated vs. fluorine-free)

PossiblePVC plasticizer leaching

LikelyCoating degradation over time

Why this grade

Our pick

Outdoor Products

Ultimate Dry Sack 3-Pack

PFAS grade

F 20/100

Overall grade

F 12/100

Verdict

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Hazard flags

⚑ 2

Material

Nylon/polyester with waterproof coating, unspecified

Confidence

45%

Possiblewater-repellent coating chemistry (fluorinated or fluorine-free unknown)

PossibleCoating degradation and microparticle shedding

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 gear bags: see the full ranking