Do Sea to Summit waterproof outdoor gear storage bags have PFAS?
Sea to Summit waterproof outdoor gear storage bags average 20 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Sea to Summit waterproof outdoor gear storage bags graded as of October 2026, level with the 20 out of 100 median for the 29 other waterproof outdoor gear storage bags brands graded alongside it.
Sea to Summit waterproof outdoor gear storage bags average Bad on our four-band scale. None of them clear our buy threshold. That is above 45% of the waterproof outdoor gear storage bags brands we grade.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Graded and flagged Poor and Bad, we’d swap these
Sea to Summit
Ultra Sil Dry
- ripstop nylon with silicone or polyurethane coating
- We found no PFAS statement from the brand
- Volatile organic compound (VOC) off-gassing from polyurethane coating, If the coating is polyurethane-based…
3 hazards checked on this product. See all of them.
Sea to Summit
Ultra- Sil Dry Bag
- Silicone coated nylon fabric
- We found no PFAS statement from the brand
- Silicone coating degradation and microplastic shedding, Silicone coatings can degrade, crack, or peel after…
2 hazards checked on this product. See all of them.
Sea to Summit
Evac Compression Dry Bag HD
- Nylon fabric with water-repellent coating (water-repellent coating) coating
- We found no PFAS statement from the brand
- water-repellent coating degradation and particle release, As nylon fabric ages and experiences friction…
2 hazards checked on this product. See all of them.
Sea to Summit
Lightweight Dry Bag
- Nylon fabric with waterproof water-repellent coating
- We found no PFAS statement from the brand
- water-repellent coating degradation and leaching, As the nylon water-repellent coating wears through repeated…
3 hazards checked on this product. See all of them.
Sea to Summit
Big River Dry Bag
- PVC or vinyl fabric with waterproof coating
- We found no PFAS statement from the brand
- Phthalates, PVC waterproof coatings commonly use phthalates or alternative plasticizers to achieve…
5 hazards checked on this product. See all of them.
Sea to Summit
Evac Compression UL Dry Bag
- Nylon fabric with water-repellent coating (water-repellent coating) coating
- We found no PFAS statement from the brand
- PFAS, Nylon dry bags typically rely on fluorinated water-repellent coating treatments. Sea to Summit does not…
2 hazards checked on this product. See all of them.
Sea to Summit
Lightweight Dry Bag View
- polyurethane-coated nylon with water-repellent coating treatment
- We found no PFAS statement from the brand
- PFAS, water-repellent coating finishes on outdoor fabrics commonly contain perfluoroalkyl substances; this…
3 hazards checked on this product. See all of them.
Better waterproof outdoor gear storage bags from other brands
Graded higher than the Sea to Summit average of 20.
REI Co-op
Trailgate Gear Bin Green 140 L
- Polypropylene storage bin, no water-resistant coating mentioned
- UV degradation and additive leaching
3 hazards checked on this product. See all of them.
Marmot
Tool Box
- Nylon, polyester, cotton blend; details unspecified
- Volatile organic compounds (VOCs) from polyester and nylon manufacturing
5 hazards checked on this product. See all of them.
Patagonia
Disperser Roll Top Pack 40L
- Recycled polyester with water-repellent coating (water-repellent coating) finish
- The brand calls it PFAS-free, which we have not verified
- PFAS
4 hazards checked on this product. See all of them.
The same question, asked of the other waterproof outdoor gear storage bags brands
Best average grade first. Sea to Summit averages 20.
See every Sea to Summit product we grade on the Sea to Summit brand page, or the full waterproof outdoor gear storage bags ranking.