Simple Modern · Insulated Travel Drinkware
Simple Modern Trek Pivot 30oz Flip Straw Tumbler
Lower concern. Stainless steel core unlikely to contain PFAS.
Trek Pivot is stainless steel tumbler with plastic lid and straw. No known PFAS risk from stainless core, though plastic components remain undisclosed. Brand silent on PFAS.
Shop Simple Modern on Amazon →Material
Double-wall stainless steel with plastic lid/straw
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 uses double-wall stainless steel (typically 18/8 food-grade) for the drinking vessel itself, which is chemically inert and does not leach metals or off-gas under normal use. The lid and flip straw are injection-molded plastic, likely polypropylene (PP) or copolyester, materials with low BPA/phthalate risk in cold or warm beverage contact but vulnerable to degradation if exposed to high heat or prolonged direct sunlight. Stainless steel tumblers of this class have an established safety record for beverages; the concern footprint shifts entirely to the plastic components.
The brand's record and disclosure
Simple Modern does not publish detailed material safety disclosures, certifications (e.g., NSF, FDA premarket notification), or PFAS-specific statements on this product line. The brand markets lifestyle drinkware to outdoor/fitness consumers but has not faced significant public safety recalls or controversies on record for this model. Absence of transparency is typical for mid-market drinkware brands and does not indicate a safety failure, only a lack of proactive third-party verification.
How it compares in its category
Stainless steel tumblers with plastic lids occupy a middle-ground safety profile: they avoid the heavy-metal and coating-degradation risks of ceramic or non-stick coated options, and the BPA/phthalate exposure of single-wall plastic bottles. However, they introduce a secondary hazard via the plastic lid/straw, which some premium alternatives (e.g., glass with metal lids, all-stainless caps) eliminate entirely. The Trek Pivot's design is mainstream and carries no known material defects relative to comparable brands like Hydro Flask or Contigo in the same price tier.
If you buy it
Do not microwave the lid or straw; remove them and transfer contents to a microwave-safe vessel. Hand-wash the plastic components with warm (not hot) soapy water; dishwasher heat may accelerate plastic degradation over years of use. Replace the straw and lid seal if they show cracking, cloudiness, or off-odors, as these signal polymer breakdown. Store the tumbler in a cool, dry place away from direct sunlight to minimize plastic UV exposure.
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/phthalate leaching from plastic lid and straw
Polypropylene and copolyester are generally low-risk, but if the plastic is not food-grade or contains recycled content, trace BPA or phthalate softeners are possible. No recalls or test failures are on record for this specific model.
Plastic degradation and microplastic shedding over time
Extended UV exposure, dishwasher cycling, or contact with hot beverages near the plastic lid seams may cause microscopic polymer fragmentation. Risk is low under normal use (cold or room-temp drinks, hand-wash) but increases with heat and age.
Lid seal degradation and contamination
The flip-straw mechanism includes a rubber or silicone gasket; if not cleaned thoroughly or stored damp, bacteria and mold can colonize the seal. This is a hygiene issue, not a chemical hazard, but can render the product unsafe if neglected.
Stainless steel corrosion and leaching (acidic beverages)
Food-grade stainless steel (18/8) is highly resistant to corrosion from soft drinks, citrus, or vinegar-based beverages. No leaching of nickel or chromium has been reported for this product category under normal beverage storage.
Off-gassing from plastic or adhesives
New stainless steel tumblers with plastic lids may emit trace volatile organic compounds (VOCs) for the first few uses. This is not a chemical hazard but a minor sensory issue; rinsing and airing the tumbler before first use minimizes perception.
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 Travel Drinkware
Ember
Cold Tumbler
stainless steel with silicone seal
Lower concern; stainless steel tumbler unlikely to contain PFAS.
✓Naturally PFAS-free material
Ember
Tumblers - Set of 4
Stainless steel double-wall insulated
Lower PFAS concern; stainless steel drinkware rarely treated.
✓Naturally PFAS-free material
Ember
Cup 14 oz Slate Black
Ceramic or ceramic-coated stainless steel with heated base
Lower concern. Smart cup uses ceramic coating, not Teflon-type coating nonstick.
✓Naturally PFAS-free material
More insulated travel drinkware 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.