Is the inside coated with Teflon?

This inside is a stainless steel container with no apparent coating.

Is the opening wide enough to fit your hand inside in order to clean it?

Depends on the size of your hand, I think. I use cleansing tablets to clean my Miir. I think that’s your best option. I like the sleekness of the cup—it fits most cup holders.

Stainless steel hurts my teeth, does the lid prevent stainless from coming into contact with your mouth?

It did for me, the lid is plastic and seems to be enough of a lip on the top to keep MY teeth from hitting metal. It is a small cup and fits perfectly in my backpack bottle holder, So I use it often and have never had that issue.

Will this fit in the small mini coopers cup holder? for reference a monster can will fit perfectly in the cup holder but nothing wider.

It should not be a problem. I have had mine in multiple cars, including a classic car with small cup holders. Other cups did not fit, but this did!

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🔥 Sip smart, stay stylish, and never miss a beat! 🔥

SIP WITH PURPOSE - Every purchase supports nonprofits empowering communities and the environment.
ZERO SPILLS MAXIMUM HUSTLE - Secure flip lid ensures no leaks—commute or adventure, worry-free.
STAY HOT OR COLD ALL DAY LONG - Double-wall vacuum insulation locks in your perfect sip for hours.
VERSATILE FOR EVERY BEVERAGE MOOD - From piping hot coffee to iced tea, this tumbler adapts effortlessly.
SLEEK DESIGN MEETS ULTIMATE PORTABILITY - Fits snugly in cup holders for stylish hydration on the move.

The MiiR Flip Traveler 12oz is a premium insulated tumbler crafted from BPA-free 18/8 stainless steel, featuring double-wall vacuum insulation to keep drinks hot or cold for hours. Its leakproof flip lid guarantees spill-free travel, while the sleek design fits perfectly in cup holders. Ideal for coffee, tea, or iced beverages, it combines durability with eco-conscious impact by supporting nonprofit initiatives with every purchase.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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