Google · Waterproof Personal Electronics Cases
Onn. Waterproof Phone Pouch
Waterproof coating composition undisclosed, likely PFAS risk.
Onn. phone pouches use waterproofing treatments but provide no material transparency or PFAS statements. Coating type unknown, typical of budget waterproof products.
The safe swap
Rhinoshield
iPhone 17 Pro Max SolidX
100/100 safety
Same rubric that flunked this product. The swap earned its A.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Polyester/nylon with waterproof coating, composition unspecified
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
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.
The full breakdown
What it's made of and why it matters
This pouch combines polyester or nylon fabric with an unspecified waterproof coating. The coating chemistry is the critical unknown: waterproofing in consumer pouches typically relies on Teflon-family coating (Teflon-type coating-based) or polyurethane, both of which can leach if damaged or degraded. The base fabrics themselves (polyester/nylon) are inert when intact but may shed microfibers under stress. Google/Onn has not disclosed the coating formulation, which prevents assessment of fluorine content or other additives.
The brand's record and disclosure
Onn is Google's budget accessory brand; Google has no published PFAS policy or material transparency initiative for phone accessories. No formal certifications (Cradle to Cradle, Bluesign, or equivalent) have been announced for this product line. The lack of disclosed composition is consistent with industry norm for low-cost items but represents a missed opportunity for differentiation and consumer confidence.
How it compares in its category
Waterproof phone pouches universally rely on coated fabrics; fluorochemical coatings dominate due to durability and water-repellency performance. Some alternatives exist using wax-based or silicone coatings, but they are typically marketed explicitly as such and carry premium pricing. This Onn pouch sits at the budget tier, where PFAS-containing coatings are the industry default. Direct comparison data on competitor coating chemistry is also rarely disclosed.
If you buy it
Store it dry and keep it away from direct heat or prolonged UV exposure, both of which can degrade coatings and increase leachate risk. Do not use it as a food-storage barrier for extended periods or in high-heat environments (car dashboards in summer). Inspect seams and coating surface annually for tears, peeling, or white residue; discard if compromised. Wash by hand with cool water and mild soap; avoid machine washing, which stresses seams and coating adhesion.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Waterproof coating composition (fluorochemical or otherwise undisclosed)
Industry standard for waterproof textiles at this price point involves Teflon-type coating or other Teflon-family coating; Google's silence on formulation is consistent with products that may contain PFAS. Coating integrity is critical to containment.
Microfiber shedding from polyester/nylon base
Abrasion or mechanical stress (zippers, repeated folding, rough handling) can release synthetic microfibers, particularly from nylon. Risk is low if pouch is used gently and not in high-friction environments, but not eliminated.
Coating degradation and leaching
If the coating delaminates, cracks, or peels due to age, thermal stress, or UV exposure, any embedded chemicals (fluorinated or otherwise) may leach into contact surfaces. Visual inspection for damage is essential.
Adhesive or dye residues in coating
No specific recalls or contamination reports for Onn pouches have been identified. Polyester/nylon textiles can occasionally contain residual azo dyes or formaldehyde finishes from manufacturing, but risk is low in a sealed product used on the outside of a phone rather than in food contact.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 35% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Waterproof Personal Electronics Cases
Rhinoshield
iPhone 17 Pro Max SolidX
TPE/thermoplastic elastomer protective case
Phone case; typical TPE has low PFAS risk but no brand disclosure available.
✓Naturally PFAS-free material
Rhinoshield
iPhone 16 Pro SolidX
TPU, polycarbonate, and glass back
Phone case, lower concern for PFAS exposure risk.
✓Naturally PFAS-free material
Spigen
Cryo Armor Case for iPhone 15 Pro Max
TPU (thermoplastic polyurethane) bumper with polycarbonate back panel
Lower PFAS concern; standard phone case materials lack obvious PFAS indicators.
⚠Brand says nothing about PFAS
More waterproof personal electronics 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.