Great little bottle for going out. Keeps my hot water hot for at least 8 hours; though I do have somewhat of a sensitivity mouth. For those that can drink really hot liquids without burning your mouth, it'll probably be like 6 hours. And if you open the cap a lot, it'll be even less. Washing the mouth piece is easy since you can take it apart (see pictures). Also a tip that I accidentally learned, if you open the lid all the way back, it "clicks" into place so that it doesn't fall on your nose when drinking out of it.

This is my second mug, very high-quality stainless mug. The top brown part is actually some soft plastic under the cap to stop the liquid out. The lock mechanism is very good, and all the material are excellent.

Love it. Keep hot for hours.

Great, slick water bottle that keeps the content hot for pretty much the entire day, compared to some thermos that only lasts 4 hours or so.

Excellent. Leak proof, can throw it in my bag and forget about it. Coffee is still hot a day later. My new favourite mug.

This is for my daughter. She likes it.