Calpak · Insulated Drinkware Tumblers
CamelBak Tumbler 16oz
Lower concern; stainless steel core unlikely to contain PFAS.
CamelBak tumblers use stainless steel construction, which inherently avoids PFAS. Plastic components and potential lid coatings are not publicly disclosed for PFAS content.
Shop Calpak on Amazon →Material
Stainless steel with plastic lid/base
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
The CamelBak Tumbler 16oz features a stainless steel (typically 18/8 food-grade) inner vessel, which is chemically inert and does not leach metals into beverages under normal use. The plastic lid and base are likely polypropylene (PP) or similar commodity plastics; these materials are generally stable at room temperature and mild heat (cold drinks, warm beverages below 60°C). The seal between stainless steel and plastic creates a compartmentalized design where the beverage contact surface is metal, reducing plastic leaching risk compared to all-plastic tumblers.
The brand's record and disclosure
CamelBak (Camelbak Products LLC, owned by Vista Outdoor) does not publish detailed material safety disclosures or third-party certifications (e.g., NSF, BPA-free labeling) for most tumbler lines on readily available channels. The brand has no documented recalls specific to this tumbler model for chemical contamination. Industry practice suggests the plastic components are BPA-free, but explicit warranty or testing data is not publicly verifiable for this SKU.
How it compares in its category
Stainless steel tumblers with plastic lids are a midrange safety choice. They outperform single-wall plastic tumblers (higher leaching risk from temperature cycling) and match insulated stainless variants in material safety, though insulation sometimes involves epoxy resins or adhesives that are not publicly detailed. Compared to ceramic or glass alternatives, stainless eliminates chip/lead glaze risk but requires plastic lid maintenance. Brand transparency is weaker than premium competitors (e.g., Hydro Flask, which publishes BPA-free claims).
If you buy it
Wash the lid and base by hand in cool to warm (not boiling) water; avoid prolonged dishwasher exposure, which can degrade plastic seals and triggers. Do not fill with beverages above 60°C; heat can cause minor plastic off-gassing from lid components. Replace the lid if cracks, discoloration, or odor appear, as degraded plastic increases leaching. Store empty and dry to prevent bacterial or mold buildup in the seal.
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.”
BPA/BPS in plastic lid or base
No public recall or testing data specific to this model. Material is almost certainly BPA-free under current US manufacturing standards, but explicit certification is not advertised.
Aluminum leaching (if aluminum used in lid hardware)
CamelBak tumblers typically use stainless steel or anodized aluminum in lid hardware. If aluminum is present, anodizing usually prevents contact corrosion, but no product specification is publicly available to confirm.
Plastic degradation and microplastic release under heat or UV
Polypropylene lids can soften or emit trace volatiles if exposed to boiling water or left in direct sunlight for extended periods. Risk is low in typical cold/warm beverage use but increases if heated above 70°C or stored in heat.
Bacterial or mold growth in lid seal or threads
Stainless steel core resists microbial growth, but the plastic-to-stainless seal junction is a common site for moisture and bacterial colonization if not dried thoroughly after washing.
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 Insulated Drinkware Tumblers
Contigo
Byron 2.0 Stainless Steel Travel Mug Snapseal
Stainless steel, silicone gasket
Travel mug with lower PFAS concern; stainless steel typically safe.
✓Bare metal or glass, no coating at all
Thermos
Stainless King Travel Tumbler
Stainless steel exterior, vacuum-insulated, minimal internal coating
Lower concern. Stainless steel tumbler with standard design, no PFAS-prone features.
✓Bare metal or glass, no coating at all
Thermos
Stainless Steel Tumbler w/ Slide Lock Lid
Stainless steel tumbler with plastic slide lock lid
Lower concern. Stainless steel is PFAS-free; monitor lid material.
✓Bare metal or glass, no coating at all
More insulated drinkware tumblers 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.