Originally Posted by swjohnsey
When the Platypus is full it will stand upright. When empty it can be folded to about 6"x2"x1/2". They come in several different sizes. The one I have is 3 litre, I believe.
I use one of these in a 3 Liter
for drinking kept in a tank bag and then one of these in a 10 Liter
when I get someplace for camp site water (dont neet to haul around full) and need more for cooking and dishes etc.
These will fold up or roll up small and are very tough material but a bit expensive.