The 4 liter Diablo Pro Tank Bag has upgrades similar to its larger cousin, yet maintains its minmalist, slim and trim design. Includes an electronics pass-through for on-bike charging and power inside the bag. Some other great features include full interior lining with a hook-and-loop compatible fabric, movable divider with an elastic tire pressure gauge holder, exterior mesh pocket and D-ring mounts for optional Pannier Pockets ; 2 liters each side. Also allows for easier access to fuel fills by unzipping either side from the harness, while the concave front design will allow the vent hoses to breathe.