Us Army 3L Hydration Water Backpack and 2L Bicycle Mouth Water Bladder Bag and Outdoor Military Backpack Tactical Backpacks 35L
FEATURES: Backpack made by high density Nylon material. Large filling port with secure seal. Bite valve design, convenient for switch on/off the flow of water. Comes with bite valve cover. Completely safe to use. With hand carry strap and adjustable shoulder strap. Keep water cool for hours. Extra carrying space for storage. 3L hydration water reservoir is installed in the backpack.