The Aircontact back system with Air Spacer Mesh and a large ventilation channel ensures high wearing comfort and optimal load distribution, along with comfortable shoulder straps, movable hip fins, and an ergonomic lumbar pad. A large, J-shaped front opening provides easy and quick access to the contents of the backpack. Additionally, the detachable 3-liter hip fin pockets offer more volume for personal items. There is also space for water bottles up to 1.5 liters in a fold-out pocket.