If she were tight, they would practically.

Only a few reviewers mention the insufficient tightness. These are probably those who use the product really _unterwegs_.

I have now tried a total of two pieces of it, I have both returned. And why? Because they are not tight.
If you fill a hot water, close the pot, she turns around and shakes (very slightly), the water drips out. So you can empty the entire bottle.

It may be that many have the bottle perpendicular _always_, for hikers and mountain climbers it is absolutely useless. Unless someone stands on wet backpacks ...

Greeting