Waterproof Pouch · Waterproof Phone Cases
Lewis N Clark WaterSeals Magnetic Waterproof Phone Pouch
Skip. Waterproof coating composition undisclosed; PFAS risk unclear.
Waterproof phone pouches often use water-repellent coating coatings that may contain PFAS. Lewis N Clark provides no material specifications or PFAS disclosure. Consider pouches with transparent material composition.
The safe swap
Urban Armor Gear
Urban Armor Gear Plyo iPhone 15 Pro Case
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
PVC or vinyl with unspecified waterproof coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
water-repellent coating treatments have historically used PFAS.
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Phthalates
PVC requires plasticizers for flexibility; manufacturer does not specify phthalate-free or alternatives. Risk of migration into phone electronics or hands increases with heat, UV exposure, or contact with oils.
Source: ATSDR ↗Undisclosed waterproof coating additives
Coating formulation is proprietary and not disclosed. Cannot rule out Teflon-family coating, waxes, or other compounds with potential health or environmental concerns.
PVC off-gassing and degradation
PVC can release volatile organic compounds, especially when new or stored in warm conditions. Over time, coating degradation may release breakdown products or increase plasticizer volatilization.
Microplastic shedding
PVC is brittle and can fragment or shed microparticles if creased, stored in tight spaces, or exposed to repeated mechanical stress. Fragments could theoretically enter the pouch contents.
Lack of transparency and third-party verification
No certifications, material safety data sheets, or plasticizer disclosures available. Brand's silent stance on PFAS and other chemical use is a documented gap in consumer information.
The full breakdown
What it's made of and why it matters
This pouch is constructed from PVC (polyvinyl chloride) or vinyl with an unspecified waterproof coating applied to achieve its sealing properties. PVC requires plasticizers like phthalates or alternative esters to remain flexible; the specific plasticizer formulation is not disclosed by the manufacturer. The waterproof coating composition is also proprietary and undisclosed, raising questions about whether it contains Teflon-family coating, waxes, or other additives. When PVC is exposed to heat, UV light, or prolonged contact with oils and solvents, migration of plasticizers and coating components into contents or into the environment becomes possible.
The brand's record and disclosure
Lewis N Clark does not publicly disclose material composition details, plasticizer type, or waterproof coating formulation for this product. No third-party certifications (such as Oeko-Tex, phthalate-free declarations, or non-PFAS waterproofing claims) are evident in available product documentation. The manufacturer has not issued public statements on PFAS use or avoidance in their waterproof product line. This silence on material safety is typical for budget waterproof accessories but leaves consumers without assurance of lower-risk formulations.
How it compares in its category
Waterproof phone pouches commonly use PVC, silicone, or laminated polyurethane. PVC-based options are cheaper but carry higher plasticizer leaching risk than thermoplastic polyurethane (TPU) or food-grade silicone alternatives. Premium brands sometimes disclose phthalate-free plasticizers or PFOA/PFOS-free waterproofing, but this product makes no such commitment. For temporary phone protection in casual settings, it sits at the lower end of the safety spectrum within its category.
If you buy it
Keep the pouch away from direct heat, sunlight, and prolonged storage with contents pressed against the walls to minimize plasticizer migration. Do not submerge electronic devices inside for extended periods; use it for brief water exposure only. Store it in a cool, dry place separate from food or cosmetics. Replace it after 1-2 years of regular use, as PVC degrades over time and coating breakdown can accelerate leaching and loss of waterproof integrity.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Waterproof Pouch has made none
Formulations change between production runs, so check the current label. How we grade.
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More waterproof phone cases 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.