Stanley Classic Vacuum Bottle - 2qt
I have this thermos and it is the only one I've owned that doesn't eventually leak or break in some way. Keeps the coffee hot all day long and is super rugged. The only negative is that this is one heavy thermos - too heavy for ski touring duty. So, this one works for early mornings at work and camping trips, etc. when I'm not going to have to lug it around in a pack.