The perfect addition to any Jetforce pack. the Booster system will allow you to add any size pack to your existing Jetforce pro back. Whether you are heading out for a quick lap and need a small 10L pack or you are taking an extended trip into the backcountry and need a 35L, the booster pack is perfect. Easy to equip and un-equip, the Booster Pro will give you piece of mind and save your wallet at the same time.