Thermos Stainless King Travel Tumbler & Multi- Purpose Flask- 470ml Insulated Hot & Cold Water Bottle for Daily Commute & Weekend Adventures - Sleek Design in Midnight Blue, 5-Year Durability

Excellent flask. No leaks so far, doesn't seem to taint too readily though I only use it for coffee so hard to say for sure. Temperature maintained over many hours - keeps coffee hot to warm for an entire working day of 8 hours - and fits cup holder in car perfectly. The open/close function adds security against leaks. Ideal.

I love this cup, I can make a hot drink and it’s still warm 9 hours later, not hot but warm enough to still drink. The main body of the cup is quite durable too, I’ve dropped mine a few times and though it dents it doesn’t make a difference to it’s functionality, although I have had to replace previous ones as the plastic lid has broken when dropped meaning it doesn’t seal. It’s easy to take apart and clean, can go in the dishwasher but i wouldn’t recommend it as it leaves a chemical taste for a while after.

This travel mug does a good job of keepjng beverages hot. (I have never used it for cold liquids.) The key is to properly prime the thermos with boiling/ hot water and wait 10 minutes before emptying and immediately refilling with your beverage of choice. Also, leave very little head space when finally filling with hot liquid. These steps take a bit more time, but the results are worth the effort. By doing this, the flask performance will meet the stated time the literature claims the contents will remain hot. It is easy to use and clean. It feels substantial, durable, and is holding up to daily use. It does not leak, unless the lever (Open/Close) has accidentally been left open or cap has not been screwed on tightly.

Good quality flask that does not leak! As you would expect with Thermos they keep the drinks hot for a good time. I particularly like the fact that you can use is with or without the lid. Without the lid it is a perfectly good drinking mug. It is also dishwasher safe.

I have had this item for a few months now and it is used every working day. It keeps my long black hot and pleasant to drink from making time at around 06:30 until I finish it at around noon. A good 5.5 hours is better than anything else I have ever used. It is strong, easy to clean and is leakproof once closed properly. At 6.46cm measured across the base, it fits well in the cup holder in my van and also in every loan car I have used. One star lost however because the paint is not particularly robust, which is a shame because the finish is very pretty, in a sparkly, shiny fashion. Mine is due to have the cup holder section repaired with stone chip paint, or something equally durable. Do I recommend it? Yes! Would I buy another one if this one went missing? In a heartbeat!

Now this is my favorite mug. It keeps heat very well, and the lid is easy to take apart. When it cools down, it sometimes makes sounds like in a horror movie ))

A great mug which will keep your drink hot most of the day. Although spare seals are expensive if you lose one. Cheaper to buy a new mug.

Great quality keeps drinks nice and hot good value for money