THERMOS ALTA SERIES Stainless Steel Tumbler 18 Ounce, Matte Steel/Espresso Black

This thermos is pretty good I have two of them I carry to work every day want to keep hot water in the other one for tea just so I don’t have to find a microwave I am a truck driver on the road all day eating when it’s convenient. I often let this sit for a good part of the day sometimes even not using the hot water and emptying it out late in the night after filling it up at 2 AM in the morning and still finding it to be pretty decently warm by 6 or 7 PM in the evening, Very easy to take apart and clean and does not leak what more could you ask for.

Mantiene el agua fría por horas.

Just perfect. Perfect size and easy to clean.

I intended to order a Thermos tumbler that I already had which was apparently from something called "The Guardian Collection". The listing for this tumbler states that it would be identical. When it arrived, the packaging clearly stated that it was one from "The Alta Series" and the interior of the lid and the way it seals was completely different. While it seems to be leak proof, it's much more fiddly to clean and the flow rate is not as good. It fits in a bicycle bottle cage, which was the primary requirement for me.

I have tried all other major brands and I can say nothing beats thermos in terms of performance. Looks good too. Very durable