TruEnamel Tumbler

Regular price $29.95
Regular price $29.95 Sale price $29.95
Sale Sold out
9 reviews

TruEnamel Tumbler

Regular price $29.95
Regular price $29.95 Sale price $29.95
Sale Sold out
9 reviews
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Orders over $75 ship free!
(U.S. standard ground only)


Product Description

Introducing your new favorite cup. The 12oz TruEnamel™ brings first-of-its-kind innovation with a familiar feeling. The pure fired-glass TruEnamel coating features a smooth drinking surface, making that first morning sip even smoother. Add in vacuum-insulated stainless steel for that cozy (or cool) feeling you can take with you anywhere. Not to mention it sits pretty on the shelf.


Wash before first use. Hand wash recommended, do not use abrasive cleanser or wire brushes. Lid top rack dishwasher safe. Do not freeze, do not microwave, do not bleach, do not overfill. Left unwashed, dark liquids will stain.

CAUTION: Choking hazard, may contain small parts not suitable for children under 3 years.  When filled with hot liquids and keep hot liquids out of reach of children. *Note the Press-fit Slide Lid is not leakproof.

What Lids Are Compatible?
Press-fit Slide Lid

Press-fit Slide Lid - Large

Compatible with 12oz TruEnamel

View Product ›

Press-fit Straw Lid

Press-fit Straw Lid

Compatible with 12oz TruEnamel

View Product ›

Shipping & Returns

Do I have to pay for shipping?

MiiR offers free standard ground shipping within the contiguous United States for orders $75 and over. Standard ground orders under $75 are subject to a flat rate shipping fee of $9.95 USD. Expedited and international rates, if applicable, will be calculated in the checkout once you have entered your shipping address.  A shipping charge will be applied to your final order in all other scenarios.

When will my order ship?

We do our best to ship your order within 1-2 business day of purchase, M-F. Exceptions may occur if there is a question regarding your order, in which case we will contact you directly.  If you have questions about your order, please contact at

MiiR uses FedEx, UPS, and USPS (depending on the best rate) for shipments within the contiguous United States unless an expedited option is selected by the customer.

2-Day and Overnight orders should be placed by 7:00 AM PST for quickest delivery. Expedited orders placed after 7:00 AM PST will require an additional business day for processing. This excludes weekends and holidays. All "Delivery by" dates are estimates and not guaranteed. 

Shipping to Hawaii 

Shipments to Hawaii will be automatically upgraded to a 2-day delivery service. Furthermore, please note that shipping remains free for orders over $75.

Keeps Drinks Cold or Hot Longer

Our Thermo 3D® Double wall vacuum-insulation keeps hot drinks hot and cold drinks cold.

Ultra-Smooth Drinking Surface

Real fired-glass enamel imparts no smell or flavor to your beverage.

Splash Proof

TruEnamel™ Tumbler comes with the Press Fit Slide Lid that's both splash proof and shatter proof.

Design Forward

Enduring 18/8 Stainless Steel material and pure fired-glass enamel meets beautiful design with a minimalist silhouette. BPA free.

Generosity Driven

Every MiiR product sold helps fund nonprofit organizations that work to empower communities, while investing in the health of our natural environments.

Customer Reviews
4.0 Based on 9 Reviews
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andrew b.
United States United States


Mug itself is pretty nice nothing special. The lid is supposed to be spill or splash proof and it is not.

United States United States


I've searched for a travel mug that doesn't hold the coffee smell-and the TruEnamel stands up to the test. The glass on the outside makes the mug less ruff and tumble, but it's more sturdy that a ceramic mug from the cupboard by far. I would have liked to see a more secure lid, this mug can't be tipped more than 45° without some spilling taking place. Overall: TruEnamel Tumbler is worth it, but hoping for an upgrade to the lid.

United States United States

Love my tumbler

I got one of each style of the TruEnamel when they came out and I'm very pleased with both (although I'm fonder of the tumbler style). I mostly hand wash them but that's because I don't want to wait until the dish washer is full. It's probably for the best if they are not as tenacious as the other powder coated styles. I haven't had any issue with chipping as the other review did, but I do wonder if it might be more practical to just enamel the inside and powder coat the outside for strength. Not sure if they mechanics would work to do that though... I will say that it's been an absolute game changer when it comes to keeping the coffee flavor pure. This tastes the same as a ceramic cup and that alone is worth the slightly more delicate nature of the finish. My only wish is for more colors and a 14 oz version. (And maybe a super spill proof lid)

john v.
United States United States


Your best yet! Now make wine glasses.

United States United States

Almost perfect...

Really enjoying the new trueenamel tumbler, has a very slick finish and is easy to clean. Only negative so far is the gasket should have been designed slightly thicker as it pops out a little too easily as the finish is so smooth on the interior.