Case-Mate · Waterproof Phone & Tech Cases
Case-Mate Waterproof Phone Belt Bag
Waterproof bags often use PFAS-treated fabrics. No disclosure from Case-Mate.
Case-Mate does not disclose PFAS status for this waterproof belt bag. Waterproof textiles commonly contain water-repellent coating coatings with PFAS; unknown here without brand testing data.
The safe swap
Spigen Tough Armor
iPhone 17 Series Tough Armor T AI MagFit Case
85/100 safety
Same rubric that flunked this product. The swap earned its B.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Nylon/polyester blend with waterproof coating, unspecified water-repellent coating treatment
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
Case-Mate Waterproof Phone Belt Bag uses a nylon/polyester blend with an unspecified water-repellent coating (water-repellent coating) treatment. The waterproofing coating is the key concern: most commercial water-repellent coating treatments rely on fluorochemicals (PFAS-family compounds) to achieve water-shedding properties, though Case-Mate does not publicly disclose the chemistry. Nylon and polyester themselves are stable plastics that do not leach significant chemicals under normal use, but the coating applied to achieve waterproofing is the primary hazard vector.
The brand's record and disclosure
Case-Mate has not published transparency statements about water-repellent coating chemistry, PFAS use, or waterproofing treatment specifications for this product line. The company has no widely documented PFAS phase-out commitments or third-party certifications (such as Bluesign, GOTS, or OEKO-TEX) on record for this category. This silence is typical in the phone accessory segment but leaves consumers without assurance that PFAS-free alternatives are being used.
How it compares in its category
Most waterproof phone bags and belt pouches use similar nylon or polyester-based fabrics with legacy water-repellent coating coatings; Case-Mate's approach is standard practice in mass-market accessories. Premium competitors (e.g., some brands marketed toward outdoor/hiking) have begun adopting PFAS-free water-repellent coating technologies, but these are not yet mainstream in casual phone storage. At the mid-market price point, this product offers typical functionality with typical chemical transparency gaps.
If you buy it
Avoid prolonged contact with skin, especially on damp or warm days, since water-repellent coating residues may transfer more readily when fabric is wet. Do not machine wash at high temperatures or dry clean aggressively, as heat can degrade the coating and potentially release volatile compounds. Store in a cool, dry place away from direct sunlight to minimize coating degradation over months. Replace if the fabric loses water repellency or shows visible peeling, cracking, or discoloration of the coating.
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.”
PFAS in water-repellent coating
Unspecified waterproof treatment strongly suggests fluorochemical water-repellent coating; no disclosure from Case-Mate. PFAS in coatings persist in the environment and have been detected in human blood.
Coating degradation and inhalation risk
If coating degrades from heat, friction, or age, fine particles or volatile compounds may be released. Risk is low under normal storage and use but increases if bag is exposed to high heat or mechanical stress.
Azo dyes in nylon/polyester
No recalls or specific warnings for Case-Mate phone accessories regarding azo dyes. Nylon and polyester fabrics can theoretically contain restricted azo compounds, but Case-Mate's position in the mid-market makes full compliance with EU and US standards likely.
Microplastics from fiber shedding
Synthetic nylon and polyester fabrics shed microfibers during washing or wear. A belt bag worn against skin or clothing will shed slowly; volume is small but cumulative over product lifetime.
Antimony in polyester
Polyester production may involve antimony as a catalyst. Published safety data does not support leaching risk from finished polyester textiles under normal use; no Case-Mate-specific concerns on record.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 42% 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 Phone & Tech Cases
Spigen Tough Armor
iPhone 17 Series Tough Armor T AI MagFit Case
Polycarbonate and TPU (thermoplastic polyurethane)
No PFAS risk signals detected in this rigid plastic case.
⚠Brand says nothing about PFAS
Spigen Tough Armor
Samsung Galaxy S24
Thermoplastic polyurethane (TPU) and polycarbonate (PC)
Lower concern. Phone case, not high-risk product category.
⚠Brand says nothing about PFAS
Spigen Tough Armor
Spigen Galaxy S23 Series Case Tough Armor
Thermoplastic polyurethane (TPU) and polycarbonate blend
Lower concern; no known PFAS-prone materials or treatments identified.
⚠Brand says nothing about PFAS
More waterproof phone & tech 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.