Tech21 · Waterproof Phone Chargers & Cable Cases
Tech21 4ft USB-A to Lightning Data Cable
Lower concern. Standard TPR cable coating rarely uses PFAS. No disclosure to verify.
Tech21 USB cables use common thermoplastic rubber coating. No PFAS claims or third-party testing available. Standard electronics cables carry minimal PFAS risk but lack transparency.
Shop Tech21 on Amazon →Material
Thermoplastic rubber (TPR) overmold, copper core
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
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 cable uses a thermoplastic rubber (TPR) overmold around a copper wire core with a Lightning connector head. TPR is a soft, flexible elastomer chosen for durability and grip comfort rather than chemical toxicity concerns. The copper core conducts power; the TPR jacket provides insulation, strain relief, and protection against kinking. Unlike older PVC-coated cables, TPR does not require phthalate plasticizers for flexibility, making it a safer material choice in this product class.
The brand's record and disclosure
Tech21 is a subsidiary of Otter Products (parent of OtterBox) known primarily for protective phone cases and accessories. The company does not publish detailed chemical disclosure statements or third-party safety certifications for charging cables. No recalls or public safety incidents have been documented for Tech21 data cables. The brand's silence on PFAS and other restricted chemicals is typical for accessory makers but limits independent verification of supply-chain sourcing.
How it compares in its category
TPR-coated Lightning cables are standard in the mid-market; Tech21's 4ft length and certified Lightning connector place it alongside Apple's official cable and competitors like Anker and Belkin. TPR jackets are generally preferred over PVC for flexibility without phthalates. This product offers no special certifications (e.g., MFi, UL) beyond basic Apple compatibility, which is typical for third-party cables at this price point.
If you buy it
Keep the cable away from extreme heat (above 60°C / 140°F) as TPR can soften and degrade under sustained high temperature. Inspect periodically for cracks, splits, or exposed copper; replace if jacket integrity is compromised. Avoid sharp bends at the connector end to prevent internal wire fracture. Standard use in room-temperature environments poses no recognized leaching or off-gassing risk.
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.”
Microplastic shedding from TPR jacket degradation
TPR jackets can crack and shed particles over time, especially if kinked or exposed to heat. No data exists on Tech21's specific TPR formulation durability; inspect regularly and replace if jacket shows visible damage.
Copper leaching from exposed core
If the TPR jacket cracks and internal copper is exposed, contact with skin or moisture could cause minor irritation. This is a mechanical failure risk, not a chemical one inherent to the product design. Proper handling prevents exposure.
Connector corrosion or ionic leaching
Lightning connectors are typically nickel or gold-plated; no public incidents of allergic reactions or corrosion reported for Tech21 cables. Standard care (dry use, clean contacts) eliminates risk.
Phthalates in cable jacket
TPR does not require phthalate plasticizers for flexibility. Tech21 cable formulation is not disclosed, but TPR base resin is inherently phthalate-free; risk is negligible compared to older PVC cables.
Formaldehyde or volatile off-gassing
TPR and copper do not off-gas formaldehyde under normal use conditions. No smell, irritation, or air-quality concerns are documented for this product category.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% 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 Chargers & Cable Cases
Nomad
Universal Cable
Braided nylon and metal connectors
Lower concern. Nylon cable has minimal PFAS risk.
✓Naturally PFAS-free material
More waterproof phone chargers & cable 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.