PFAS45/ 100Poor
Overall5/ 100Bad
Nyan Cat Waterproof Phone Protector Y2k Case Keep It Dry Swim Iphone

CAT · Waterproof Phone Cases

Nyan Cat Waterproof Phone Protector Y2k Case Keep It Dry Swim Iphone

Poor

Skip. Waterproof coating composition undisclosed, PFAS risk unclear.

Verdict: SkipUndisclosed waterproof coating likely contains PFAS; unspecified polymer base and absent brand transparency on material safety make this a preventable risk.

This budget phone case uses an unspecified waterproof coating with no material transparency or PFAS claims. Waterproof polymers commonly contain PFAS; brand silence on composition raises concern.

The safe swap

Mophie Juice Pack Access Battery Case for iPhone 11 Pro

Mophie

Mophie Juice Pack Access Battery Case for iPhone 11 Pro

85/100 safety

85Excellent

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

Unspecified plastic/polymer with 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.

65/ 100
♾️

Category baseline

other is a category where PFAS exposure is more common.

90/ 100
♾️

Vague safety claims only

Uses vague language ("eco-friendly", "clean") without a specific PFAS statement.

90/ 100
🏷️

Waterproof coating composition (undisclosed)

The coating is not identified by the manufacturer. Waterproof finishes on consumer phone cases typically rely on fluorinated polymers or other synthetic compounds. Without disclosure, you cannot verify whether the coating is PFAS-free, poses off-gassing risk, or complies with consumer safety limits on volatile organics.

20/ 100
⛏️

Polymer base leaching (unspecified plastic type)

The plastic or polymer material itself is not specified. If the base is a recycled or low-grade plastic blend, it may leach plasticizers (such as phthalates or BPA analogs) when warmed by the phone or exposed to moisture over time. Phone cases are in direct contact with skin for extended periods.

70/ 100
🫧

Coating degradation and microparticles

Waterproof coatings on budget phone cases commonly degrade, flake, or peel with regular use and temperature cycles. Shedding coating particles may be inhaled or ingested if the case deteriorates significantly; composition unknown makes assessment of toxicity impossible.

45/ 100
💨

Volatile organic compound (VOC) off-gassing

Unidentified plastic and coating materials may off-gas volatile compounds when new or when warmed by a functioning phone in a sealed case. No emission testing or ventilation data is available. Prolonged exposure in a sealed pocket or bag could concentrate these odors.

70/ 100
🚩

Brand accountability and recall responsiveness

The brand provides no documented safety certifications, recalls, or third-party testing. If a safety issue emerges, there is no public evidence of brand responsiveness or documented processes for consumer notification or remediation.

70/ 100

The full breakdown

What it's made of and why it matters

This case uses an unspecified plastic or polymer base with an added waterproof coating. The coating composition is not disclosed by the brand, which is a critical gap because waterproof finishes on consumer phone cases typically rely on fluorinated compounds (PFAS) to repel water. Without transparency on whether the coating is PFAS-free, silicone, or another chemistry, you cannot assess whether the product will off-gas or leach chemicals during use, especially when warmed by normal phone operation or sun exposure.

The brand's record and disclosure

Brand CAT provides no public material safety documentation, certifications, or statements on chemical composition for this product. There is no evidence of third-party testing, compliance statements for plasticizer restrictions, or commitment to PFAS avoidance. The complete silence on material safety is itself a red flag in a category where competitors increasingly publish safety data.

How it compares in its category

Waterproof phone cases vary widely in safety profile. Premium alternatives from established brands often specify silicone or TPU materials with PFAS-free certifications. Budget or novelty cases like this one frequently rely on opaque plastic blends and proprietary coatings with no public chemical disclosure. This product falls into the higher-risk segment due to absent transparency and unverified coating chemistry.

If you buy it

Do not expose the case to heat (avoid direct sunlight or hot surfaces) as this may accelerate off-gassing of unidentified coating chemicals. Keep the case away from young children or infants who may mouth it. Inspect it regularly for peeling, cracking, or discoloration of the waterproof layer, which signals coating degradation. If any visible damage occurs, discontinue use and replace it with a product from a brand with published material safety data.

What we don’t know

Basis
Model estimate, 35% confidence, not a lab result
Lab test
None on record for this exact product
Brand statement
CAT has made none

Formulations change between production runs, so check the current label. How we grade.

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🧠

Lead

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🎨

Synthetic dyes and colorants in leather and strap fabric

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⚠️

Volatile organic compounds (VOCs) from tanning and finishing

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💨

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💨

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🎨

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💨

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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.