Simple Modern · Insulated Drink Tumblers
Simple Modern Classic Black Leopard Tumbler
Stainless steel tumbler, lower concern for PFAS risk.
Simple Modern tumblers are primarily stainless steel double-wall construction, an inherently PFAS-free material. Brand makes no PFAS claims; no independent testing available, but material choice suggests lower risk.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel double-wall insulated tumbler
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
This tumbler uses 18/8 stainless steel (chromium-nickel alloy) for the inner and outer walls with an air gap for insulation. Stainless steel is chemically inert at normal use temperatures and does not leach metals into beverages or food under standard conditions. The double-wall design means no plastic liner contacts your drink, eliminating risks from BPA, BPS, or phthalate migration that plague single-wall plastic tumblers. The black leopard pattern is a printed or enameled graphic applied to the exterior surface, which does not contact contents.
The brand's record and disclosure
Simple Modern is a private outdoor drinkware company with no major published safety recalls or regulatory actions on record for their tumbler line. The brand does not publicly disclose third-party testing, material certifications (such as FDA food-contact compliance), or PFAS testing methodology, despite the industry shift toward transparency on PFAS in coatings. This silence is typical of mid-tier drinkware brands but falls short of leader-tier disclosure by companies like Hydro Flask or Klean Kanteen. No established controversies exist in public health or consumer safety databases for this specific product or brand.
How it compares in its category
Stainless steel double-wall tumblers occupy the mid-to-premium tier of reusable drinkware safety. They outperform plastic and plastic-hybrid models on chemical leaching risk, but some competitors (notably Hydro Flask) publish third-party NSF or FDA testing. Simple Modern's lack of published certifications places it slightly below verified brands, though the material itself is among the safest available. Price point and insulation performance are competitive; safety transparency is not.
If you buy it
Stainless steel tumblers are durable and non-toxic for hot and cold beverages. Hand-wash with mild soap and avoid abrasive scrubbers on the printed exterior to prevent graphic degradation or coating flaking. Do not expose to extreme heat (dishwasher high-temp cycles may degrade seals over time); air dry upside down to prevent water pooling in the double-wall gap, which can cause odor or mold growth. Replace after 3-5 years if seals leak or the exterior coating shows visible wear or peeling.
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.”
Coating degradation (printed/enameled exterior graphic)
The black leopard pattern is applied to the steel exterior and may chip or peel with heavy use or dishwasher exposure, though ingestion risk from small flakes is low. No specific degradation data is available for Simple Modern's coating formulation.
Double-wall seal failure and microbial growth
If the seal between inner and outer walls fails, moisture can pool in the insulation gap, creating conditions for mold or bacterial growth. This is a maintenance and product durability issue rather than a chemical hazard, but is common in budget double-wall tumblers.
Stainless steel leaching (metal ions)
18/8 stainless steel does not leach chromium, nickel, or iron into neutral pH beverages under normal use. Acidic drinks (lemon water, vinegar) or alkaline solutions could theoretically increase leaching over extended contact, but this is not a reported concern for any major stainless steel drinkware brand and is far below regulatory thresholds.
Lid gasket or seal material unknown
Simple Modern does not publicly specify the composition of the lid gasket or silicone seals. These components may contain phthalates, BPA-alternatives, or other polymer additives if not food-grade certified, though most reputable brands use safe materials here.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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
Lower concern tumbler; stainless steel is inherently PFAS-safe.
✓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.