THERMOS ALTA SERIES BY Stainless Steel Tumbler 18 Ounce, Slate

I loved the design of the cupIt keeps coffee warm for hours.

If this is available when you see it, get it. It's not always in stock.Pros - Leak proof, no sticking odor, retain heat for 5h+Cons - Personally I dislike the many loose pieces from the lid when I wash it, but I get their functionality so this is more of a disclaimer than a con.

The BEST cups!

After buying many thermal cups and returning them because they didn’t stay hot long enough for me to finish drinking my coffee in about a half-hour, I’ve finally found the perfect thermal cup.The difference is the vacuum seal. Well made and sturdy; tight seal and does not leak; stays very hot for about an hour and warm for a few hours; fits nicely under my small Keurig without having to remove the bottom piece; dishwasher safe; easy to remove the sturdy lid; easy open and close sipping hole. This cup is not flimsy.Some have commented that it’s difficult to remove the lid, but if you open the sipping hole, the lid unscrews on and off easily by releasing the vacuum seal.Another feature that sets it apart is that I can brew a 12-oz cup of coffee without the water overflowing, with room to spare.I have only positive things to say about this cup. It’s perfect and far superior to the others I’ve tried, including expensive popular name-brands.

Funciona a la perfección y mantiene por bastante tiempo el calor de mi bebida.