The fenomen with thermoses that keeps warm has been known for a long time. Here we have the opposit, a bottle that kepps cool. The bottom can be screwed of so you can fill it up with is for a long cooling. Or fill it with your favorit fruit to get a nice taste. The bottle is made of steel and will be your friend for many years a head, it can also take a smaller punch.
A smaller stratch is attached by the cork.