This comfortable pack is very versatile thanks to modular gear straps that can be positioned to attach a range of items depending on the undertaking or the gear you need to take. Its superior carry comfort is down to the deuter Aircontact back system with Air Spacer mesh and a large ventilation channel, plus ergonomic ActiveFit shoulder straps and an adjustable sternum strap. The Y-shaped frame in combination with mobile hip fins that wrap around the hips and deuter's ergonomic trapezoid-shaped lumbar pad combine to effectively distribute and stabilize the load. deuter - Aircontact Core 50l+10 Trekking Backpack graphite shale