Features Backpack capacity 14.5 liters 3 liters water bag allows for an average of 4 hours of autonomy Ideal for those who need a water supply & want to replace the fanny pack with a convenient backpack Front tool pocket with special pockets Internal thermal pocket Innovative "X" Closure System, with central quick release & 4 Velcro adjustments, cancels the swinging effect & simultaneously distributes the pressure of the shoulder straps evenly, on the chest & not on the shoulders, ensuring a free & unencumbered ride Additional adjustment at the waist Breathable fabric in back contact area Bottle holder/side storage compartment Identification label (personal data) Easy to fill & clean thanks to the large sliding bar, which snaps on for a watertight seal