Sea to Summit · Waterproof Bags & Luggage
Sea to Summit Meridian Duffle
water-repellent coating treatment likely applied. PFAS status unclear from brand.
Sea to Summit doesn't publicly disclose PFAS in this duffel's water-repellent coating. Standard water-repellent coating treatments often contain PFAS, but the company hasn't confirmed this product's chemistry.
The better-graded swap
Salomon
Salomon Extended Totebag
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Nylon/polyester with water-repellent coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Sea to Summit Meridian Duffle is made of, ingredients and materials
The Meridian Duffle uses nylon and polyester blended fabric, both petroleum-derived synthetics chosen for durability and water resistance. Sea to Summit applies a water-repellent coating (water-repellent coating) finish to the exterior. water-repellent coating coatings historically rely on fluorinated compounds (PFAS-based), though newer non-fluorinated alternatives exist; the brand has not publicly disclosed which chemistry they use on this model. Neither nylon nor polyester presents acute toxicity risks in normal use, but the water-repellent coating treatment is the critical unknown.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
water-repellent coating degradation and leachables
As the fluorinated or non-fluorinated water-repellent coating wears through washing and UV exposure, polymer breakdown products may release into storage contents. No specific leachate testing for this model is publicly available, but this is a known risk class for coated synthetics over extended life.
Polyester microfiber shedding
Mechanical abrasion and repeated flexing can cause nylon and polyester fibers to shed into contents, particularly clothing or soft goods stored inside. This is not unique to Sea to Summit but inherent to woven synthetics; volume depends on weave tightness and use intensity.
Azo dyes in colored nylon
Nylon fabric dyes may include azo compounds, some of which can metabolize to banned aromatic amines under sweat or saliva exposure in rare scenarios. No specific dyestuff testing for Meridian is published; risk is low under normal dry-goods storage but should be considered if using the duffle for wet or infant items.
PFAS
Brand silence and use of traditional water-repellent coating chemistry make fluorinated PFAS probable, though unconfirmed. Sea to Summit has not published a commitment to fluorine-free alternatives. This is the dominant concern for this product.
Source, ATSDR ↗What’s reassuring
VOC or chemical off-gassing from manufacturing residues
No specific off-gassing complaints or air-quality incidents are on record for this model. New nylon and polyester fabrics may have residual solvent or sizing odor from production; airing outdoors for 24-48 hours typically resolves this and is standard practice for new gear.
How is this PFAS grade calculated?
The brand's record and disclosure
Sea to Summit maintains a reputation for outdoor durability focus but has not published a clear PFAS policy or material disclosure statement specific to water-repellent coating treatments. No recalls or public safety incidents are on record for this product line. The brand's silence on fluorinated chemistry is typical for mid-tier outdoor brands that have not committed to PFAS phase-out. Independent third-party certifications (such as Bluesign or GOTS) are not prominently listed for this duffle.
How it compares in its category
Most nylon/polyester duffles in this price and performance tier use similar water-repellent coating coatings; virtually all face the same PFAS uncertainty unless explicitly marketed as fluorine-free. Premium brands (e.g., Patagonia, Arc'teryx) increasingly disclose non-fluorinated water-repellent coating alternatives or provide transparency roadmaps. Budget alternatives may use lower-performance coatings with less PFAS loading or no water-repellent coating at all. The Meridian sits in the middle ground, reputable construction without leading environmental transparency.
If you buy it
Use the duffle for dry goods storage and travel rather than food or drinking water contact. Do not expose to prolonged direct heat (e.g., near heaters, car dashboards) as synthetic coatings can degrade and off-gas. Wash gently with cool water and mild soap; avoid high-temperature machine drying, which can damage the water-repellent coating finish and accelerate polymer breakdown. Replace when seams fail or coating visibly degrades; well-made nylon duffles typically last 5-10 years with normal use.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Sea to Summit has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Sea to Summit Meridian Duffle?
- Cordura nylon fabric
- We found no PFAS statement from the brand
- Heavy metals
- Polyester webbing and nylon
- Azo dyes in polyester webbing
4 hazards checked on this product, all on its full breakdown.
- Polypropylene shell, polyurethane foam, stainless steel hardware
- Polyurethane foam degradation and off-gassing
More waterproof bags & luggage grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.