The heavyweight haulage specialist - licensed to carry heavy loads! Apart from the many clever details of the Aircontact Pro series, which make for easy handling, the Vari Flex system gives this pack the edge when it comes to carrying heavy loads. Its mobile hip fins diligently follow every movement you make, making even the toughest terrain passable without losing balance. The fins distribute the load evenly to the hips, thus reducing fatigue, and providing freedom of movement. The aluminium stays combine with the Deuter Vari Flex to create a carry system that brings together the critical performance qualities of stability, efficient load transfer, perfect load control and incredible flexibility.