High tech, back-free, ventilation optimized carry device for hydration and other essential needs on shorter rides. With enough space for a tube, some tools and a 1,5l hydration system it comes with a very dialed system that is an extra in comfort, that we call VENTIFLAP: increase the back distance for climbing and tighten it to the hip for the downhill, simply by pulling a string! Features: Hydration bladder 1,5L AIRFLOW CONTACT SYSTEM offers perfect back ventilation VENTIFLAP for uphill- and downhill mode adjustment 2 BOTTLE CARRIERS with extra safety fixation - easy to reach Tool compartment (separate, quick-access)