But the Zojirushi SM-SE Travel Mug is, hands down, the best travel mug you can buy, and we've got the data to back it up. According to our test, the Zojirushi kept coffee hot for five hours longer ...

thanks to the small piece on the lid that flips up and reveals a hole that allows a stream steady enough to get a good mouthful but not so wide open that it spills when I tilt the mug back.