Balancing comfort, weight and ventilation, the Deuter Aircontact Lite 40 10 pack will score big points on your back. Its effective moisture transfer is ideal for long treks and high-altitude tours.

• Expandable collar on the main compartment provides 10 extra liters of storage capacity when you need it and tucks away when you don't
• Body-contact back design keeps weight close to your body for efficient load transfer
• Anatomic X-frame with aluminum stays and open-cell, hollow-chamber foam padding ensure structural support and cooling breathability
• Vari Quick adjustable back length accommodates torsos measuring 15 to 20 in.
• S-shaped shoulder harness with ergonomic padding has soft edges, airy 3D mesh lining and load-adjustment straps at the shoulders
• Comfort Lock ergonomic hip fins with dual-density foam can be adjusted for load stability and a custom fit; Auto-Compress side compression straps add snug security
• Pull-forward hipbelt with dual stretch-mesh zippered pockets is easy to fasten and tighten, even with heavy loads
• Ice-tool and trekking-pole loops, accessory loops and top lid attachment points make it easy to lash on gear or a helmet holder (not included)
• Side compression straps let you regulate pack volume
• External lid pocket; valuables pocket on lid interior; stretch side water bottle pockets; large front stretch pocket; internal valuables pocket
• Separate bottom sleeping bag compartment with zippered divider
• Height-adjustable, removable lid
• Height- and width-adjustable chest strap with signal whistle
• Hydration compatible (reservoir not included)
• Double-layer base stands up to season after season of outdoor adventure