1) The Backpack is constructed by waterproof high density Nylon material
2) Two layers cargo design, one for hydration bladder, the other for extra carrying purpose
3) Come with a hand carry strap and adjustable shoulder strap
4) Come with a chest belt, suitable for heavy carrying
5) Come with TPU material Hydration Bladder and bite valve
6) Neoprene tube cover keeps water cool for hours
7) Water Capacity: 2.5L
8) Size: 470x255mm
-Pipe Length: 100cm