For sale: an Exos 46 backpack, size large, ember orange color. This was a warranty replacement and is new without the tags. I got a screaming deal on a Mariposa and I'm going that way. $120 local pickup in Seattle or $135 shipped to US addresses.

Manufacturer's description:

Common sense dictates that in the long run, going light with a pack that has no suspension burns more energy than gained by ounces saved. The Exos Series incorporates a ventilated suspension built for comfort with super light weight. The result is a highly specialized pack built for day long to multi-week adventures.

The Exos 46 is the ultimate thru hike and super lightweight backpack, thanks to our AirSpeedSuspension, which teams a 6061-T6 Aluminum frame with a 3D tensioned mesh backpanel, and side crescent ventilation. The AirSpeed suspension works in tandem with the supportive and ventilated Bio-Stretchâ„¢ harness and hipbelt for fit and comfort unheard of in a one kilo pack.
Exos 46 Features:

Hydration
InsideOutâ„¢ Compression
Over Skirt Compression Strap
Stow-on-the-Goâ„¢ Trekking Pole Attachment
Top Pocket Removable
Vertical Zippered Front Pocket
Modified AirSpeed Suspension with 6061-T6 aluminum frame and tensioned breathable mesh backpanel with side ventilation
BioStretch harness and hipbelt feature mesh covered slotted foam for breathability and comfort

Hydration:
The Exos features an internal sewn-in backpanel sleeve with clip attachment to accommodate up to three liters of hydration. At the top of both sides of the pack you will find H20 icons marking the routing points for your hydration tube.
Dimensions:
In: 27.5 high x 14 wide x 12 deep
Cm: 70 x 35 x 30
Volume (large size): 2990 cubic inches (49 liters)
Weight: 2 pounds 7 ounces (1.10kg)