Hydration backpack Big size with 3L water bladder

• Material:600D Oxford
  Water Bladder Bag Capacity: 3.0L
  Dimensions: 25CM(L) * 7CM(L) * 45CM(H)
• Specification:
  Neoprene tube cover keeps water cool for hours.
  Bite Valve Cover keeps Bite Valve clean from dirt.
  Constructed by waterproof 600D Oxford.
  A switch on/off bite valve, convenient for control the flow of water.
  Adjustable shoulder strap and chest belt, suitable for heavy carryin.
  Equipped with a tube with a bite valve to drink, so you don't need to hold it to drink.
  Two layers cargo design, one for hydration bladder, and the other for extra carrying purpose, can hold digital products and other stuff.
  

bag and water bladder