We already have the 0.5 l - version that fits perfectly into the bottle belt. Now we have bought one size larger. The accompanying us in winter for longer distances and is always with you in the car. Very good is the optional closure "normal" or quick stop. We only have the Quick Stop it, pouring goes without untwisting. Then press shortly on the outer ring and the seal is tight again. Even with the hot stamina it works well. Scald can after 5-6 hrs. No longer, but a hot cup of is all available. Also an advantage: The lid as a mug. The ordinary water bottles you still had to take a cup, if you wanted to not only suck. "Bite valve" and so on. Otherwise, the thermos is our opinion "unbreakable", it is just mainly for outdoor and burdens.