Here's what other sites are saying:
The Creon Light Pack from Mammut is the ideal, ultimate lightweight backpack. Weighing in at just 900 g, the 32-litre version can still hold enough for a weekend tour. Its excellent ventilation is revolutionary. The gap at the shoulder area creates a chimney effect, while the wide-meshed air space suspension system, shoulder straps and hip belt promote air circulation. With adjustable back length.
The ideal ultimate lightweight backpack Weighing in at just 1 kg the 32liter version can still hold enough for a weekend tour Its excellent ventilation is revolutionary The gap at the shoulder area creates a chimney effect while the widemeshed air space suspension system shoulder straps and hip belt promote air circulation With adjustable back lengthThe 4 STREAM system eliminates all the disadvantages of existing air space suspension systems Rising hot air can escape upwards resulting in a chimney effect the balance point is closer to the body and packing is easier32 and 45 liter volumes allow simple adjustment of the 3level suspension system to suit the length of the wearers back32 and 45 liter volumes equipped with a heightadjustable flap with internal and external pockets 25 liter version with flap stitched in placeSide zip access to the main compartment1 large stretch front pocket2 stretch side pocketsPole carrier with tubular sheathPocket on the hip beltLateral compression straps can also be tensioned at the front to carry gearHydration system compatibleUpper Fabric 70D Nylon 3Line RipstopTrim Fabric 100D Nylon Diamond RipstopBase Fabric 420D Nylon Oxford HDBack System 4 STREAM O Frame