You can only push up the cover, a screw cap will be sought in vain, but keeps the lid tightly se.
The opening from which you can drink is made only by a Schiebemechnanismus on or seals and unfortunately absolutely not. The cup has only one tip and already runs the liquid out and after a short time (well over a minute) is the whole content away.
If the liquid leak would only drop by drop tipping manageable, but if you transported the cup in a bag and this is tipped over, without that you get with this, which will have a very annoying and wet end result.
The heat is also lost quite quickly, after about an hour the drink is only lukewarm. Because I know better products.
Who is looking for a good Thermometers should distance themselves from this piece here and also when the matter is quite nice, there are certainly other Thermobecher that besitzten such sayings.
More than 2 stars here are not in it!