Just drop in! The versatile mountainbike allrounder with comfortable Air Pad back padding is at home on all trails, but just as much in school, uni or your regular daily routine. Air CirculationA constant, free flow of air is enabled by means of the vertical air channel. This ensures optimal ventilation even at high exertion levels including a lot of sweat so as to prevent the chilling of the sensitive kidney area. Air Pad SystemThe Air Pad System with its arrangement of 5 ventilation channels (1 main channel and 4 sub-channels) and 6 strategically positioned 3D air mesh pads offers the optimal combination of a close, load-neutral fit and back ventilation. The shoulder straps with air mesh and large ventilation holes ensure that the pack remains securely in place in any situation, and provide optimal breathability on the shoulders as well. 2-Step-Zip SystemThe 2-Step-Zip System zipper construction allows you to access your backpack main compartment in two ways: The full opening of the main compartment gives you unrestricted access to the entire contents. The topload version is convenient when you're on the go.