This is really neat - a totally leak-proof bottle that is slim enough for a briefcase or backpack, and doubles as a cup. This bottle is actually more comfortable to drink out of that a lot of commuter mugs! And not many people really like to use the lid of their thermos as a cup, so instead you have spring-loaded push-button top that can be opened with one hand. It fits most auto cup-holders.

This is the larger of the two sizes that Nissan makes ... we thought the 11 ounce smaller one (JMW-350) is too small to be practical. The 16 ounce (.5 L) size is available in Silver SS color. This model has great heat retention : 209 f water was 194 after one hour, 180 after 2 hours, and 168 after 3 hours. Height 9.25", Diameter about 2.75"

* Please note: We have had a couple of these returned lately because people complain they leak - but they only leak if you overfill the thermos all the way to the top - above the top gasket. If you do this - any liquid above the top gasket will leak out.