The Best Non-Toxic Insulated Drink Tumblers & Travel Mugs of 2026

We scored 15 insulated drink tumblers & travel mugs for PFAS forever chemicals and other hazards, then ranked them safest first. The top pick is Yeti Rambler Tumbler YETI at 80/100. Every score below links to the full breakdown of what earned it.

How to read these scores. PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Each grade is a model-based assessment built from published ingredient lists, materials, certifications, brand disclosures, recalls and third-party lab results where they exist. Read the full rubric to see exactly what adds and removes points.
80% of the 15 insulated drink tumblers & travel mugs we scored fail our PFAS and toxin screen.
PFAS Authority, September 2026. Free to cite with a link. See the full dataset.

The safest PFAS-free insulated drink tumblers & travel mugs we have scored

  1. 1
    Rambler Tumbler YETI

    Yeti

    Rambler Tumbler YETI

    18/8 stainless steel, no coating

    PFAS Grade80Excellent
    Overall Grade76Excellent
    ⛏️

    Nickel leaching from stainless steel

    Limited concern

    70

    Low risk. Bare stainless steel tumbler with no known PFAS risk.

    ⚠Risky category by default

    Why this gradeBuy
  2. 2
    Contigo Autoseal West Loop Stainless Steel Travel Mug

    Contigo

    Autoseal West Loop Stainless Steel Travel Mug

    stainless steel body, silicone gasket/lid seal

    PFAS Grade75Excellent
    Overall Grade71Good
    ⏳

    Silicone gasket degradation and bacterial/mold colonization

    Limited concern

    70

    Low-Medium risk. Stainless steel and silicone have minimal PFAS risk.

    ⚠Risky category by default

    Why this gradeBuy
  3. 3
    Contigo Cortland Chill 2.0 Stainless Steel Water Bottle

    Contigo

    Cortland Chill 2.0 Stainless Steel Water Bottle

    stainless steel, no reported coating

    PFAS Grade75Excellent
    Overall Grade63Good
    ⏳

    Gasket and seal degradation

    Limited concern

    70
    ⚠️

    Bacterial growth in inaccessible spaces

    Limited concern

    70
    ⚠️

    Thermal stress and seal failure

    Limited concern

    70

    Low-Medium risk. Bare stainless steel bottle with no known problematic coatings.

    ⚠Risky category by default

    Why this gradeBuy

Every insulated drink tumblers & travel mugs that passes, side by side

Sorted by score. Higher is safer. Scored against 5 hazards that apply to this category.

#Insulated Drink Tumblers & Travel MugsScoreRatingMade of
1Yeti Rambler Tumbler YETI80Excellent18/8 stainless steel, no coating
2Contigo Contigo Autoseal West Loop Stainless Steel Travel Mug75Excellentstainless steel body, silicone gasket/lid seal
3Contigo Contigo Cortland Chill 2.0 Stainless Steel Water Bottle75Excellentstainless steel, no reported coating

The insulated drink tumblers & travel mugs we would skip

Lowest scoring in this category, worst first.

Contigo Superior 2.0 Travel Mug

Contigo

Superior 2.0 Travel Mug

stainless steel with unspecified interior coating

PFAS Grade15Bad
Overall Grade3Bad
♾️

PFAS

Limited concern

70
🫧

Coating degradation and microplastic/particulate release

Limited concern

70
💨

Off-gassing from coating under heat stress

Limited concern

70

High risk. Skip until Contigo discloses interior coating composition.

⚠Nonstick, coating undisclosed

Why this gradeSafer picks →
West Loop 2.0 Leak-Proof Spill-Proof Insulated Travel Mug

Contigo

West Loop 2.0 Leak-Proof Spill-Proof Insulated Travel Mug

Stainless steel with unspecified waterproof/leak-proof coating

PFAS Grade20Bad
Overall Grade0Bad
♾️

PFAS

High concern

20
⏳

Silicone gasket degradation and leaching

Limited concern

70
⚠️

Mold and bacterial growth in insulation cavity

Limited concern

70
🫧

Coating wear and microparticle shedding

Limited concern

70

High risk. Skip until Contigo discloses leak-proof coating composition.

⚠Waterproof or stain-proof treatment

Why this gradeSafer picks →
Contigo Byron 2.0 Insulated Travel Mug

Contigo

Byron 2.0 Insulated Travel Mug

Stainless steel exterior, BPA-free plastic lid and interior

PFAS Grade65Good
Overall Grade53Good
🧴

Phthalates

Limited concern

70
⛏️

Stainless steel nickel leaching

Limited concern

70
🫧

Microplastics

Limited concern

70

Low-Medium risk. Stainless steel body is unlikely to hold PFAS.

⚠Risky category by default

Why this gradeSafer picks →

What we check on insulated drink tumblers & travel mugs

  • BPA & bisphenols. Plastic-hardening chemicals linked to hormone disruption. FDA
  • Phthalates. Plastic softeners studied for endocrine effects. ATSDR
  • Microplastics. Tiny plastic particles that shed from products into food and water. EPA
  • Lead. A heavy metal with no safe exposure level, especially for children. ATSDR
  • Cadmium. A toxic heavy metal found in some glazes, pigments, and batteries. ATSDR

Full point-by-point rubric on the methodology page.

The insulated drink tumblers & travel mugs brands that will not say

2 of the brands here publish nothing about PFAS at all. Silence is not evidence of harm, but it is why none of them score well on disclosure.

Contigo, Yeti.

Common questions about PFAS-free insulated drink tumblers & travel mugs

Is insulated drink tumblers & travel mugs PFAS free?

Mostly not. Of the 15 insulated drink tumblers & travel mugs we have scored, 80% fail our PFAS and toxin screen, which leaves 3 that pass. The highest scoring is Yeti Rambler Tumbler YETI at 80 out of 100. The lowest is Contigo Contigo Superior 2.0 Travel Mug at 15.

What is the safest insulated drink tumblers & travel mugs you have scored?

Yeti Rambler Tumbler YETI, at 80 out of 100, which we band as Excellent. It is 18/8 stainless steel, no coating. The runner up is Contigo Contigo Autoseal West Loop Stainless Steel Travel Mug at 75.

Which insulated drink tumblers & travel mugs should I avoid?

The three lowest scoring we hold are Contigo Contigo Superior 2.0 Travel Mug at 15, Contigo West Loop 2.0 Leak-Proof Spill-Proof Insulated Travel Mug at 20, Contigo Contigo Byron 2.0 Insulated Travel Mug at 65. The problem with the first is that high risk. Skip until Contigo discloses interior coating composition.

How can you tell if insulated drink tumblers & travel mugs contain PFAS?

In this category we check for bpa & bisphenols, phthalates, microplastics, lead, cadmium. Plastic-hardening chemicals linked to hormone disruption. Language like stain resistant, water repellent or easy release usually means fluorinated chemistry even when PFAS is never printed on the box.

Which insulated drink tumblers & travel mugs brands will not say whether they use PFAS?

2 of the brands we scored in this category publish nothing about PFAS at all, including Contigo, Yeti. Silence is not evidence of harm, but it is the reason those brands cannot score well on disclosure.

Do you lab test insulated drink tumblers & travel mugs?

No. We score from published ingredient lists, materials, certifications, disclosures and third party lab results where they exist. Where a product has been independently tested we use that result and say so.

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Does a particular brand of insulated drink tumblers & travel mugs have PFAS?

Want to filter the whole category yourself? Browse all 15 insulated drink tumblers & travel mugs.