Its not only light weight but it makes a great fashion statement, heard that Singapore sent similar water bottles to Japan to help them tide over the hard times!
As it comes with a carabineer, you can hang it on the places you need. When you are climbing mountain, hiking, or doing some sports, this water bag is convenient and great!
After you drink out all the water, just fold the water bag like paper and put it in your bag, it takes up very little space.
