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The Osprey Exos 38 is so light that you’ll want to tether it when it’s not strapped to your back. Everything about this pack is featherweight, starting with the mesh Airspeed™ Suspension which stabilizes the load and simultaneously provides maximum airflow for high-output ventilation. An ExoForm™ hipbelt and shoulder harness combine for all-day carrying comfort.

Osprey designers built this pack from light but durable 100D High Tenacity nylon and added superlight YKK zippers. Along with ultra-light materials, the top lid is removable, as are all external straps to shave a few more ounces. The integrated Flapjacket™ remains to protect your gear if the weather turns nasty.

Mesh side pockets with InsideOut™ compression combine storage and stability. The front stretch mesh pocket gives you quick access to a map or an extra layer. Two zippered hipbelt pockets keep snacks and essentials secure.

The pack includes an ice axe attachment loop in case you’re in the mood to blitzkrieg an alpine adventure. External cord tie-off points give you the option to lash on additional gear.

If you want to fly through the backcountry on winged feet, this is the pack for you.

Key Attributes


Minimalist design and featherweight materials balance comfort and durability. All external straps are removable to shave weight when ounces count.

Airspeed Suspension

The tensioned mesh back panel stabilizes the load off of your back for ventilation and comfort.


Remove the floating top lid and deploy the integrated FlapJacket™ to protect your gear from the elements.


  • Floating Top Lid - A removable floating top lid with an internal key clip and underlid zippered mesh pocket provides extra organization and can be removed to shave weight
  • Mesh Side Pockets with InsideOut™ Compression - Dual side stretch mesh pockets with InsideOut™ compression allow for extra tension and more secure loads in the side pockets
  • Zippered Hipbelt Pockets - Dual zippered hipbelt pockets provide secure storage for often needed items
  • Sleeping Pad Straps - Cross functional, removable sleeping pad straps provide external gear carrying options
  • Integrated FlapJacket™ - Osprey’s FlapJacket™ system provides compression and protection from the elements for the main pack compartment when the top lid is not in use.
  • Stretch Mesh Front Pocket - Large front stretch mesh pocket for quickly stashing gear
  • Tool Attachment - A single tool loop at the base of the pack works in conjunction with the side compression strap for secure tool carry
  • Cord Tie-off Points - Multiple cord tie-off points for the quick attachment of additional gear

Carry Information

Superlight Airspeed™ Suspension

  • 6065 aluminum frame
  • 3D tensioned breathable mesh back panel with side ventilation

Exoform™ Harness

  • Seamless layered mesh provides improved comfort and cushioning
  • 15 mm adjustable slide sternum strap
  • Stretch mesh energy gel pocket

Exoform™ Hipbelt

  • ergoPullTM closure
  • Seamless layered mesh provides improved comfort and cushioning


Load Range
15 - 31 lbs.
7 - 14 kg
  Volume Dimensions Weight
SM 2197 in3 / 36 l 26h x 13w x 11d in. 2.05 lbs.
MD 2319 in3 / 38 l 28h x 13w x 11d in. 2.14 lbs.
LG 2441 in3 / 40 l 30h x 13w x 11d in. 2.23 lbs.
SM 2197 in3 / 36 l 66h x 33w x 28d cm 0.93 kg
MD 2319 in3 / 38 l 71h x 33w x 28d cm 0.97 kg
LG 2441 in3 / 40 l 76h x 33w x 28d cm 1.01 kg
100D High Tenacity Nylon
100D High Tenacity Nylon Ripstop
100D High Tenacity Nylon Ripstop
Product Manual Additional languages available here �


Thru-hiker tried, tested and approved!


I am a long distance hikers with two Appalachian Trail thru-hikes under my belt and around 5,000 miles hiked. I've used and been exposed to many types of packs from those weighing ounces to 5 or 6 lbs. But I've never seen a better made pack than the Osprey Exos 58. My first impression was good at REI when I loaded it with all of my gear and put it on was bliss as it fit comfortably and was so light. As I hiked the pack continued to meet and exceed my expectations as I exceeded the pack weight limitations of around 30 lbs by 15 lbs with 45lbs with a weeks worth of food and water. (Not recommended long term) I love the "trampoline" where the pack frame is about 2" off of your back and a mesh sits on your back so that wind passes between you and your pack preventing the awful sweaty pack back! I'm not the only one who loves this pack as on my AT thru-hike this pack is becoming the dominant pack in the AppalachianTrail community. Check it out for yourself and you may soon own one of your own! - Squarepeg 2013 250 mile Appalachian Trail section hiker, 2015 & 2016 Appalachian Trail thru-hiker.

Uvalde, TX


My Favorite Backpack


This is my go-to backpack for extended backpacking trips. It is lightweight without completing sacrificing framing so it does handle heavy awkward objects, such as bear canisters. Obviously built with minimalism in mind, Osprey has done certain things to make it more comfortable. I do not recommend heavy loads with this pack. This is for the lightweight backpacker only.

Fullerton, CA


Love these packs!


After months of searching for a good pack for day hikes up 14ers I finally choose the Exos 38. One of the best packs I've ever owned. The removable top compartment isn't a feature I'll ever use so the extra material that serves as the secondary top cover is a slight annoyance. The top compartment also doesn't sit very well if the pack isn't fully loaded up. And other than the lack of color options(wishing there was a dark grey/burnt orange, but I'm nitpicking) this pack is solid. I've used the 38 and 58 on multiple 12+ mile hikes and never had any problems. Still amazed that it's as light as it is for what it can carry. I used to be a devoted Black Diamond pack user. Osprey has pretty much won me over with the Exos.

Denver, CO



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