We love our new travel coffee mugs. They are HUGE but seem to fit in the coffee holders in our cars. Beware that you're getting a LARGE mug of coffee with these. I was impressed how long it keeps the coffee piping hot...we're talking hours later it's just as warm as when you poured it! It is a tight seal too and while I haven't dropped it while it's full I have knocked it over and nothing comes out. Great product!

Keeps coffee VERY hot, durable, comes in great colors
Very large - it could be too big for some car drink holders