Deuter OP Aircontact Core 70L + 10L Trekking Pack is a well-thought-through design that offers optimised packing, comfort and utility. Its superior carrying comfort is thanks to Deuter's proven Aircontact back system with Air Spacer mesh and large ventilation channel, as well as the ergonomic ActiveFit shoulder straps and adjustable sternum strap. The Y-shaped frame, mobile hip fins and ergonomic lumbar pad combine to distribute the load effectively so you can move easily when fully loaded. A full-length, J-shaped zipper on the front makes contents easy to locate lower down in the main compartment, while large, detachable hip fin pockets provide extra storage and keep quick-grab items within reach. A zip-out 1.5L bottle holster also lets you hydrate on the move and you can easily stow your hiking poles in the attachment loops when not needed.