OtterBox · Insulated Drink Tumblers & Travel Mugs
OtterBox Elevation 16oz Tumbler
Lower concern but water-repellent coating composition undisclosed by brand.
OtterBox tumblers use stainless steel with water-repellent coating. Brand provides no PFAS transparency; coating chemistry remains unconfirmed.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Stainless steel with water-repellent coating
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
cookware 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 Elevation 16oz uses 18/8 stainless steel as its core material, which is chemically inert and does not leach metals into beverages under normal conditions. The water-repellent coating (water-repellent coating) coating is applied to the exterior surface to shed liquids and resist staining. Unlike ceramic-coated or enameled cookware, stainless steel avoids glaze-based hazards like lead or cadmium. The coating composition is not disclosed by OtterBox, making PFAS content a transparency gap rather than a confirmed risk.
The brand's record and disclosure
OtterBox is primarily known for protective phone and electronics cases, not drinkware, so public safety disclosures for this product line are minimal. The brand has not published material safety datasheets or PFAS-free certifications for the Elevation tumbler. No recalls or established safety incidents are on record for this specific product. Lack of transparency is a minor concern, but absence of reported harm suggests routine manufacturing practices.
How it compares in its category
Within insulated tumblers, stainless steel is a safer baseline than aluminum (which can leach in acidic drinks) or plastic liners with potential BPA exposure. Many competing brands (YETI, Hydro Flask, Contigo) similarly do not disclose water-repellent coating chemistry, making this product's opacity typical rather than exceptional. The main trade-off is that non-stick coatings on stainless steel tumblers carry theoretical Teflon-type coating or PFAS risk if damaged and heated, though beverage-only use minimizes this.
If you buy it
Hand-wash rather than dishwasher to preserve the water-repellent coating and avoid prolonged heat exposure that could degrade the surface layer. Inspect the interior and exterior regularly for chips or flaking; if coating damage is visible, replace the tumbler to avoid ingesting coating particles. Do not use for hot beverages above 150F repeatedly, as temperature cycling can stress the coating bond. Avoid acidic liquids (vinegar, citrus juice, kombucha) left standing overnight, as they may interact with the coating edge.
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.”
water-repellent coating integrity and particle shedding
If the water-repellent surface coating degrades from impact, thermal cycling, or dishwasher use, small flakes could shed into beverages. Stainless steel itself is safe, but the coating composition and adhesion are unknown.
Aluminum leaching (secondary concern)
This product uses stainless steel, not aluminum, so leaching risk is absent. Relevant only if the core material were misidentified in product specs.
Teflon-type coating or Teflon-family coating fume risk from coating
If the water-repellent coating contains Teflon-type coating or similar polymers, overheating (accidental exposure to oven or flame) could release fumes. Beverage-only use and hand-washing eliminate this risk in practice.
Heavy metal migration from coating pigments or adhesives
No recalls or reports of lead, cadmium, or other toxic metals in OtterBox tumblers. Industrial stainless steel coatings are typically low-risk, but coating formulation is proprietary.
Microplastics from interior surface degradation
Stainless steel interior does not degrade into microplastics. Risk applies only if interior had a plastic liner or coating, which this product does not appear to include.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 62% 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 Insulated Drink Tumblers & Travel Mugs
Yeti
Rambler Tumbler YETI
18/8 stainless steel, no coating
Lower concern. Bare stainless steel tumbler, no known PFAS risk.
⚠Risky category by default
OtterBox
Elevation 20 Tumbler
Stainless steel tumbler with powder coat or polyester exterior
Lower PFAS concern; stainless steel construction poses minimal risk.
⚠Risky category by default
Contigo
Autoseal West Loop Stainless Steel Travel Mug
stainless steel body, silicone gasket/lid seal
Lower concern. Stainless steel and silicone have minimal PFAS risk.
⚠Risky category by default
More insulated drink tumblers & travel mugs 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.