OtterBox · Insulated Drink Tumblers & Travel Mugs
OtterBox Elevation Tumbler
Hydrophobic tumbler, likely low PFAS risk but treatment not disclosed.
OtterBox Elevation is a stainless steel tumbler with water-repellent coating. Brand does not disclose PFAS status; hydrophobic treatments sometimes use PFAS, sometimes do not.
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Material
Stainless steel with hydrophobic surface 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
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 Tumbler is constructed from stainless steel (typically 18/8 or similar food-grade alloy), which is inherently non-reactive with acidic or alkaline beverages and does not leach metals under normal use. The hydrophobic surface treatment is a thin polymeric coating applied to resist water spotting and improve grip; while its exact chemistry is proprietary, such coatings on tumblers are typically silicone-based or wax-polymer blends rather than fluorinated compounds. Stainless steel cookware in this form carries no known lead, cadmium, or ceramic-glaze contamination risks because there is no fired glaze or enamel layer.
The brand's record and disclosure
OtterBox has not published detailed material safety data sheets or third-party certifications for the Elevation Tumbler's hydrophobic coating. The brand is known for rugged consumer electronics protection but has not established a transparent stance on PFAS disclosure across its product lines. No recalls or safety incidents specific to this tumbler have been documented in public records. The lack of proactive disclosure about coating composition is a minor transparency gap but does not indicate a confirmed hazard.
How it compares in its category
Stainless steel tumblers are among the safest choices in the insulated drinkware category, outperforming coated aluminum, double-wall plastic, or ceramic-lined alternatives in terms of chemical leaching risk. The Elevation Tumbler's hydrophobic finish is a common feature across premium tumblers (e.g., Yeti, Hydro Flask) and poses lower risk than textured or reactive coatings. Unlike non-stick cookware with Teflon-type coating, this product is not heated to temperatures that would volatilize coating materials.
If you buy it
Hand wash with mild soap and avoid abrasive scrubbers, which can degrade the hydrophobic coating over time. Do not fill with boiling water repeatedly as extreme thermal stress can shorten the coating lifespan, though the underlying stainless steel remains safe indefinitely. Inspect the interior periodically for any visible coating flaking; if the finish degrades, the core material is still food-safe but water beading will diminish. Avoid dishwasher use to preserve the coating longer.
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.”
Hydrophobic coating degradation and ingestion
The proprietary hydrophobic surface may gradually shed microscopic particles with heavy use or abrasion, though ingestion of small amounts poses minimal toxicological risk. No specific data on OtterBox Elevation coating shedding rates or composition has been published.
Stainless steel leaching (nickel, chromium)
Food-grade stainless steel (18/8) is designed to resist corrosion and does not leach nickel or chromium under normal beverage storage conditions. Risk is negligible with this material grade and non-acidic daily use.
Teflon-type coating fume risk
This product is not heated to cooking temperatures and contains no confirmed Teflon-type coating, so thermal fume inhalation is not a concern.
Aluminum leaching
The tumbler is stainless steel, not aluminum, so aluminum leaching does not apply to this product.
Coating adhesion and longevity
Hydrophobic coatings on tumblers are cosmetic and temporary; user reviews indicate coating loss after 1-3 years of heavy use, but this affects function, not safety, as the bare stainless steel remains non-toxic.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 55% 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.