The Hydro Flask Lunch 18 oz is a nice companion for riding all day at my local mountain. It’s so damn expensive to get even a burger that this idea is really appealing. Knowing that it can hold it’s heat till lunch time makes me want to cook more. I put the food in that was hot at 9AM then opened this in the video at about 1PM. The temp in the car was 26 Fahrenheit most of the time. Not sure it could make it to the end of the day but it’s a great lunch option.