... used for storing and toting the fresh water. is eco-friendly TPU Water Bag,Water Bladder,Water BladderColor:armygreen,blueMaterial:TPU film(Thickness:0 ... : 1.5L-3L (can make as your requirement) 3. Water bladder, especially designed for outdoor sportmen, which used for storing ... and toting the fresh water. 4.Anti-weathering and Anti-corrosion, it is green ...