This is the best 'kanteen' i've ever bought. Ill bump my review to 4 ⭐️ for now. Is justified. That's an exaggeration, but that's often how it feels.

It keeps things cold or hot for a long time. It stays roasting hot all day and night. Works like a charm.

It fits well in the side mesh pocket of all of my backpacks or sling packs. Wide mouth makes them easy to fill with water from fridge and refill the 20 oz from the 64 oz. This 12 oz tk wide (w/ insulated lid) is all stainless and keeps my lunch piping...  Read More

My thermos mug keeps hot beverages hot for 3-4 hours. For those occasions when i pour some coffee for work it lasts for about 6 hours at a decent temp. I want to enjoy my tea not wait all day for it lol.

Klean kanteen uses high efficiency solar panels at their corporate headquarters in chico california. They are also the only water bottle manufacturer that purchases carbon offsets and renewable energy credits. Outside of it's obvious perks, i love tha...  Read More

This mug/cafe cap is very prone to leaking. But even before the pandemic hit, klean kanteen seems to have gotten large enough not to be invested in working with customers to solve problems.

Id return this thing in a heartbeat if i could.

I fill the thermos with piping hot coffee and within thirty minutes, the outside of the insulated thermos is so hot i can't touch it. Does not keep water cold. Not worth a hoot for cold!