Smooth is fast.
Attempting to set a new speed record on the Pacific Crest Trail, the Osprey Exos 48 Backpack is full of smooth moves. With a balanced volume, it keeps your packing habits under control, and it doesn''t laugh at the strange things you say to yourself as you hike. The AirSpeed back panel and light-yet-durable alloy frame blesses you with breathability by dumping excess heat out of the sides, and ExoForm covers the shoulder pads and waist-belt with mesh and gel for extended comfort mile after fast-paced mile.
Even with minimalist hiking habits in mind, the Exos offers plenty of nooks and crannies for snacks, maps, and trekking poles, as well as some quality features. A hydration reservoir sleeve offers a place to stash your three-liter bladder, so you don''t waste precious seconds stopping to pull out a water bottle, and the FlapJacket raincover keeps your precious gear dry when the weather turns sour.

Lightweight pack for minimalist backpacking or weekend trips
48-liter capacity balances storage space with speed
High-tenacity nylon endures miles of use and abuse
Tensioned backpanel keeps weight off your back for extended comfort
Highly ventilated for breathability during long days on the trail
Gearloops galore offer extra spots for poles, axes, gear, and snacks
Sleeping pad and compression straps can be removed to shave ounces
Osprey places emphasis on packs with comfortable back panels
Item #OSP00AQ

Material[body] 100D nylon, [bottom] 210D nylon
Volume[small] 45L (2746cu in), [medium] 48L (2929cu in), [large] 51L (3112cu in)
Support/SuspensionAirspeed Suspension (4mm Lightwire alloy frame)
Shoulder Strapsmesh
Waist Beltmesh, ErgoPull closure
Hydration Compatibleyes
Reservoir Includedno
Accesstop
Pockets2 mesh side, 1 stretch front, 1 zippered top
Gear Loopsyes
Ice Axe Carryyes
Trekking Pole Carryyes
Rain Coveryes, FlapJacket
Detachable Daypackyes
Compressionyes
Weight Capacity30-40lb
Dimensions[small] 29.1 x 15.8 x 12.6in, [medium] 31.1 x 15.8 x 12.6in, [large] 33.1 x 15.8 x 12.6in
Claimed Weight[small] 2lb 9.6oz, [medium] 2lb 9.9oz, [large] 2lb 10.4oz
Recommended Usebackpacking, ultralight backpacking
Manufacturer Warrantylifetime