Contigo · Insulated Drink Tumblers
Contigo DualSip Leakproof Insulated Water Bottle 2-Way Lid
Low risk. Stainless steel core avoids known PFAS sources.
Contigo doesn't make PFAS claims for this model. The stainless steel body itself carries minimal PFAS risk, though lid seals and gaskets aren't routinely tested.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel body, plastic/elastomer lids and seals
Lab data
No public lab test
What Contigo DualSip Leakproof Insulated Water is made of, ingredients and materials
The Contigo DualSip bottle body is stainless steel, which does not leach metals or require protective coatings that degrade over time. The lids and seals are elastomer and plastic (likely polypropylene or polyethylene); these materials are generally stable at normal use temperatures but should not be exposed to boiling water or prolonged heat. The dual-lid design means two separate sealing systems, increasing the number of potential contact points with liquid, though stainless steel itself is chemically inert.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Plastic lid and elastomer seal degradation
Repeated thermal stress or prolonged exposure to hot liquids can soften or degrade the plastic components. No specific failures reported for this model, but typical plastic lids may release trace compounds if damaged; inspect regularly.
Bacterial or mold growth in seals
The dual-seal design creates narrow passages where moisture can accumulate if not thoroughly dried. Risk is minimal with proper hand-washing between uses but present if bottle is stored wet or sealed while damp.
Off-gassing from plastic lids at elevated temperature
Polypropylene and polyethylene lids may release volatile organic compounds if exposed to temperatures above 160F (70C). Contigo does not specify the melting or softening point of its lid materials in consumer-facing documentation.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
Contigo has not published material data sheets confirming BPA-free status of this bottle's lids. Modern water bottle manufacturers typically avoid BPA, but explicit third-party confirmation is absent from publicly available sources for this specific product.
Source, FDA ↗Heavy metals
Stainless steel itself does not leach lead or cadmium under normal use. No recalls or test results documenting metal migration have been reported for Contigo bottles.
Source, FDA ↗The full breakdown
The brand's record and disclosure
Contigo does not publicly disclose detailed material testing or PFAS sourcing statements. The brand has no major recalls tied to chemical contamination in water bottles on public record. Contigo does not advertise third-party certifications (such as NSF or FDA material compliance statements) for this specific model, making independent verification of material claims difficult. The company maintains basic food-contact compliance but has not published transparency reports on manufacturing hazards.
How it compares in its category
Insulated water bottles with stainless steel bodies show lower concern for BPA and leaching risks compared to plastic-bodied alternatives. The DualSip's plastic lids are standard for this category and pose no greater risk than competing brands (Hydro Flask, S'well, YETI all use similar elastomer seals). The two-way design is a convenience feature that does not introduce new chemical risks compared to single-valve bottles.
If you buy it
Do not fill with liquids hotter than 160F (70C) to avoid potential softening or off-gassing of the plastic lids. Hand-wash the lids and seals regularly, as stagnant moisture inside the seals can promote mold or bacterial growth if the bottle sits unused for days. Replace the rubber gasket if it becomes visibly cracked or loses its seal. Avoid prolonged exposure to direct sunlight, which can degrade the elastomer over years of use.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Contigo has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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More insulated drink 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.