1. Safety non-toxic environment.
2. Compressive resistance to abrasion.
3. Tube connected to the bottom of the bladder
4. Can be put into backpack and backpack's shoulder strap
5. Can be used to store water with -20 to 40degree celsius
6. Foldable design
7. Open design for easy cleaning.
8. Come with dustproof cover and heat retaining tube
2.0L: 38.5cm x 17.5cm
3.0L: 41cm x 20cm
Length Of Tube:Approx 105cm
1x Water Bag