Simple Modern · Insulated Drink Tumblers
Simple Modern Trek Pivot Tumbler
Stainless steel tumbler with lower concern for PFAS. Simple Modern silent on treatment.
Trek Pivot is stainless steel with plastic components. No brand disclosure on PFAS or water-resistant coatings. Core material poses lower risk, but lid/base composition unconfirmed.
We flunk more products than we pass. This one earned its grade. How we grade
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 Trek Pivot Tumbler uses food-grade 18/8 stainless steel (chromium-nickel alloy) for the vessel itself, which is corrosion-resistant and does not leach metals under normal use conditions. The plastic lid and base are the exposure points: typically polypropylene (PP) or similar commodity plastics in this price tier. Stainless steel tumblers avoid the lead/cadmium contamination risks found in some ceramic or enameled cookware, and do not degrade into microplastics from the main drinking surface.
The brand's record and disclosure
Simple Modern has not published publicly available material safety data sheets, PFAS testing results, or third-party certifications (BPA-free statements, etc.) for this product line. The brand maintains a consumer-focused website without detailed chemical disclosure or response to PFAS inquiries in accessible form. No recalls or safety controversies specific to this tumbler model are documented in FDA or CPSC records. Silence on these details is typical of mid-market drinkware brands but represents a transparency deficit compared to premium or sustainability-certified competitors.
How it compares in its category
Stainless steel tumblers are among the lower-risk reusable drinkware options, outperforming plastic bottles and single-wall ceramic mugs in terms of leaching and degradation. Double-wall insulated designs like this one reduce thermal stress on the lid seal. Competitors such as Hydro Flask and Yeti publish more detailed material specs and third-party test summaries, though Simple Modern's price point is significantly lower and the core material hazard profile is comparable.
If you buy it
Avoid prolonged contact between hot liquids (above 60C/140F) and the plastic lid seal; remove the lid or use with the lid off for boiling water. Clean the internal threads and seal gasket regularly to prevent bacterial biofilm, especially if left uncapped or stored with liquid. Replace the lid seal if it becomes cracked, discolored, or develops odor, as these are signs of plastic degradation. Avoid dishwasher heat cycles on the lid if possible; hand wash the lid to extend its lifespan and reduce leaching risk from high-temperature plastic stress.
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.”
Plastic lid leaching (BPA/phthalates)
Commodity plastic lids in budget tumblers may contain BPA or phthalates unless explicitly certified otherwise. Simple Modern provides no public testing or BPA-free declaration for this product. Risk is low with cold beverages but increases with hot liquids in prolonged contact.
Bacterial growth in lid seal and threads
Double-wall insulated tumblers with removable lids are prone to biofilm accumulation in crevices if not cleaned thoroughly. This is a hygiene rather than toxicological hazard but common complaint in reviews of this category.
Stainless steel alloy leaching (nickel/chromium)
Food-grade 18/8 stainless steel does not leach detectable nickel or chromium under normal acidic or hot beverage use. No established recalls or complaints of leaching from Simple Modern stainless steel tumblers are documented.
Plastic seal degradation over time
The plastic lid gasket will degrade and crack within 1-3 years depending on use frequency and heat exposure. Degraded seals may shed microplastics or harbor bacteria. This is a durability and maintenance issue rather than acute toxicity, but affects long-term safety.
Volatile organic compounds (VOCs) off-gassing from new plastic
New plastic lids may emit minor VOCs for the first few days. Airing the tumbler or soaking the lid in water before first use can reduce this. No specific reports of odor complaints for this model are common in user reviews.
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 Drink Tumblers
Reduce
Halo Tumbler
Stainless steel and plastic lid
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✓Naturally PFAS-free material
Cuppa
To Go Tumbler
Stainless steel with plastic lid
Lower concern. Standard tumbler with no known PFAS risks.
✓Naturally PFAS-free material
Klean Kanteen
Steel Pint
18/8 stainless steel, bare metal
Lower PFAS concern. Bare stainless steel container, no coatings.
✓Bare metal or glass, no coating at all
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.