A super lightweight AirSpeedSuspension system on the Osprey Exos 46 Backpack helps make this quick hiker a speed demon on the trail. Tensioned mesh on the backpanel makes it feel like you opened a window on your back, and strategically placed compression straps secure fit and reduce bounce in all the right places. The lid pops off to leave the rest of the pack behind for that quick peak ascent, and a Stow-on-the-Go trekking poles carrier keeps your poles where you can get them.