I have a similar Nissan Thermos one but in mug style.
Never ever leaks, crazy hot for long times, and has made many a journey on my commuter bike. I love how grippy the handle and body are. It's held coffee, protein shakes, and oatmeal happily. And it has held up to all kinds of big drops and other unintended abuse. Several years and still going strong.
Sit bones = ~135 mm, saddles that work ~ 155cm/6.1 in wide
2003 da Vinci (custom road/all-rounder)/Terry Butterfly Ti
1994 Gary Fisher Nirvana (vintage MTB/commuter)/Terry Butterfly Chromoly
1991 Terry Symmetry (NOS frame/fork, project in progress)
1973 Raleigh Super Course (project in progress)