The Deuter AirContact 55 + 10 pack has won the hearts of backpackers everywhere. With a more modern, slim look, and a more comfortable carrying system for carrying heavy loads, it's going to be hard to ignore this beast of a backpack, even for the toughest backcountry critic. AIRCONTACT SYSTEM BACK SYSTEM 1 The ergonomic head moulding provides perfect head clearance (from Aircontact 50+10 SL). 2 The light way to carry heavy weight: The Aircontact system perfectly adapts to the wearer's back and holds the load close to the body's center of gravity. With every movement, a pump effect circulates air through the breathable padding with special ventilating hollow chamber. The result: 15% less perspiration than with other body-contour packs. 3 Additional load adjustment straps on the shoulder straps allow optimal positioning of the backpack. These are easily positioned on the shoulder straps using a "Triglide" buckle. Aircontact models above 50+10 SL sizes also have two different fixing points, depending on the back length setting, in order top optimize the load adjuster strap angle. 4 The proven VariQuick system guarantees easy adjustment to any back length. The new back panel construction creates a big contact surface making it even more compact and comfortable to carry. 5 The anatomic profiled X-frame transfers weight on the hips. The crossed aluminium stays create a flexible, yet stable frame that follows your body movements.