Dexcraft · Waterproof Personal Electronics
Nite Ize RunOff Waterproof Phone Case
Skip. Waterproof coating composition undisclosed, PFAS risk unclear.
Phone case relies on waterproof treatment without material or coating transparency. Nite Ize provides no PFAS disclosure, making risk assessment difficult for this product category commonly treated with fluorinated compounds.
The safe swap
Pelican
Pelican M40 Micro Case
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
Likely TPE or PVC with waterproof coating, 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
The RunOff case is constructed from a flexible elastomer material, most likely TPE (thermoplastic elastomer) or PVC (polyvinyl chloride), with an undisclosed waterproof coating applied to seal seams and block water ingress. Both TPE and PVC can leach plasticizers such as phthalates into contact surfaces, especially when exposed to heat, oils, or prolonged moisture. The waterproof coating itself is not characterized on the product label or Dexcraft's website, which prevents assessment of whether it contains PFAS or other problematic water-repellent chemistries. Over months of use, the elastomer can degrade and become sticky or brittle, particularly if exposed to direct sunlight or stored in hot vehicles.
The brand's record and disclosure
Dexcraft (the manufacturer behind Nite Ize RunOff) provides minimal material transparency on its product pages and does not publish a public chemical disclosure statement or PFAS policy. No independent certifications (such as oeko-tex, GreenGuard, or similar) are listed for this product. The company has not issued a public statement addressing PFAS in waterproof coatings or other product lines. This silence on composition is typical for budget outdoor-gear brands but limits consumer ability to verify safety claims.
How it compares in its category
Waterproof phone cases occupy a middle ground between soft-shell protective cases and hard waterproof enclosures. Hard cases (polycarbonate or acrylic) generally avoid plasticizer leaching but are heavier; soft elastomer cases like the RunOff are lighter and more form-fitting but carry higher material-degradation risk. Competitors (such as OtterBox and LifeProof models) also rarely disclose coating chemistry, though larger brands are more likely to respond to PFAS inquiries. Budget-tier cases like the Nite Ize RunOff typically use cheaper TPE formulations with minimal quality control on coatings.
If you buy it
Store the case in a cool, dry place away from direct sunlight and heat sources to slow elastomer degradation. Do not leave it in a hot car or expose it to prolonged UV light, as this accelerates breakdown and potential leaching of plasticizers. Inspect the case every 6 to 12 months for cracking, stickiness, or separation of the coating; discard if deterioration is visible. Rinse with fresh water after exposure to salt water or chlorine, and air-dry fully before sealing your phone inside to prevent bacterial or mold growth.
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.”
Plasticizer leaching (phthalates, BPA, or other plasticizers in TPE/PVC)
If material is TPE or PVC (most likely), the base elastomer may contain phthalates or similar additives to maintain flexibility. Prolonged contact with warm skin, moisture, or phone oils can promote leaching, especially if the elastomer degrades over time.
Waterproof coating composition unknown (potential for PFAS or other fluorinated compounds)
Waterproof coatings on textiles and elastomers frequently use fluorinated water-repellent chemistries (including PFAS). Nite Ize does not disclose the specific coating used, making it impossible to rule out PFAS or assess the concentration.
Material degradation and outgassing with heat or UV exposure
Elastomer cases are known to degrade in sunlight and heat, releasing volatile organic compounds (VOCs) and potentially increasing plasticizer volatility. Users have reported odors and sticky residue on phones after extended storage in warm environments.
Coating adhesion failure and flaking
Budget waterproof coatings often separate from the base material after months of flexing and moisture cycling. Flaking coating particles could shed onto skin or into the phone port, though acute toxicity risk is low.
Bacterial or mold growth if case is not fully dried after water exposure
Sealed waterproof cases trap moisture if stored damp. The warm, dark interior creates an ideal environment for bacterial and fungal growth, which can contaminate the phone and cause skin irritation on 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.
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✓Naturally PFAS-free material
Urban Armor Gear (UAG)
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Lower concern. TPU phone case has minimal PFAS risk profile.
⚠Brand says nothing about PFAS
Urban Armor Gear (UAG)
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Lower concern, but no PFAS transparency from UAG.
⚠Brand says nothing about PFAS
More waterproof personal electronics 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.