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Weighing in at a mere 2.05 pounds when stripped down to the bare bones, the Osprey Exos 58 is made for minimalists. Everything about this pack is light and fast starting with the mesh Airspeed™ Suspension that 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 featherweight 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 just 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 dream of thru-hiking the Pacific Crest or the Appalachian Trail, pick up the Exos 58.

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
20 - 40 lbs.
9 - 18 kg
  Volume Dimensions Weight
SM 3356 in3 / 55 l 28h x 14w x 14d in. 2.31 lbs.
MD 3539 in3 / 58 l 30h x 14w x 14d in. 2.4 lbs.
LG 3722 in3 / 61 l 32h x 14w x 14d in. 2.49 lbs.
SM 3356 in3 / 55 l 71h x 35w x 35d cm 1.05 kg
MD 3539 in3 / 58 l 76h x 35w x 35d cm 1.09 kg
LG 3722 in3 / 61 l 81h x 35w x 35d cm 1.13 kg
100D High Tenacity Nylon
100D High Tenacity Nylon Ripstop
100D High Tenacity Nylon Ripstop
Product Manual Additional languages available here �


Six days


In the desert Southwest we typically go on six day trips, mostly grand canyon stuff. However, our latest was the the Paria River canyon - 38 miles. The water is tough to filter so on two of the nights we had dry camps where we carried extra water. That, with the extra pair of water shoes, brought the pack load up to about 44 pounds. At the finish I was below 30. I would say a good comfortable max weight for this pack is around 34. I have used the pack on about 8 trips now. This is a stunningly good pack. My old pack weighed 5.5 and this one (Large, I am 6'3') is at 2.5 lbs. The mesh back really works and I find it easy to load and carry. I would not trade it, I would not attempt to go lighter, it is perfect.



Excellent product and awesome warranty service


I got Exos 58 3 years ago. I asked to purchase extra buclets. They sent to me free of charge. 1 year ago may be kind of my fault the Internal frame was broken . I asked to purchase a new frame. They told me that warranty will cover it . Because they do not keep frames in stock they gave me a brand new back[ack without any additional charge. Non only that. Someone noticed that in my old back back I had done a custom extension in the belt. Geus what. The new backpack had new belt on the right length based on my custom made betl. Back pack is great . This kind of service makes me customer for life.

Kamloops BC


Very comfortable UL pack with good design features


I have used this pack for both 3 season use with up to 35 lbs. and for hunting with a heavy (50 lb.) load with a fair amount of comfort. In fact when loaded to 30 - 35 lbs. is is even more comfortable than my old 7 1/2 lb. monster Dana Designs Terraplane. Osprey has done an excellent job of designing this pack for years of comfortable UL backpacking. Unlike some UL packs the Osprey EXOS series is made of light but durable materials and fabrics. The removable lid has been converted by this owner to a fanny pack by sewing on belt loops to the under side. This should have been designed from the start.

The Las Vegas valley


Perfect lightweight pack


Great pack for hiking/backpacking. Used by a lot of thru hikers on the AT and holds up very well. Comfortable, lightweight, durable, and the next best thing to cuben fiber. In my opinion better than cuben fiber do to it being much more durable and half the price. I was willing to accept the extra weight just for the durability factor. With the quality and the amazing warranty Osprey has this is a pack you will have forever, literally. From what i see cuben fiber breaks down much faster than ultra silnylon so this is a no brainer for me. As for all the people in this review wanting the extra zippered side pockets. I have to say i disagree. This pack is for lightweight minimalists. It is very popular just for this reason, people who want lightweight. Osprey makes tons of packs, many of them with all of those extra pockets that you want. Rather than requesting Osprey to add more weight to this pack, it would serve you better to go buy one of those packs they already make. This pack is made specifically for those of us that are lightweight backpackers, and does the job perfect in everyway. You will not regret buying this pack. Unless you're a heavy weight packer who wants a lot of pockets.

Berkshire, MA


PLEASE bring back the 2 zippered side pockets


I used the original EXOS 58 model for my 2013-2014 Appalachian Trail thru hike. The pack is lightweight and is comfortable. The problem with the updated version is the removal of the two zippered side pockets. I kept my raingear, and toilet bag in one and my Thermarest air mattress and cooking pot/gas canister in the other. It's a matter of organization and easy access. So please, Osprey, reconsider this important feature. In addition, it would be nice to have a zipper in the bottom for a sleeping bag compartment (in my case, easy access to my hammock system). Would have been 5 stars had they not removed the zippered side pockets.

Central Florida


This is the most popular thru-hike pack on the AT for 2016!


I used this pack for my 2016 Thru-hike of the AT. It was without a doubt the most popular pack on the trail this year. I worried about its durability since it is so light, but I had no problems except some holes in the net pockets. It doesn't absorb water so no rain cover was necessary. I just put everything that had to stay dry in a compression sack and then all of that into a trash compactor bag. This pack loves being between 25 and 30 lbs. but not much over.



Great company, very good product


I bought my first Osprey Exos 58 before hiking the Colorado Trail in 2014. Last year I used the pack to hike the Long Trail and John Muir Trail. With some other trips, my total mileage with the pack was about 1,500 miles. When I started planning another long hike, I noticed that the mesh that holds the pack off the back (for ventilation) had started to tear. Rather than repair it myself, under Osprey's All Mighty Guarantee I returned the piece for repair. Rather than repair the pack, Osprey decided to send me a new, updated Exos 58 at no charge. Since that time, I've taken the new pack on a couple short trips. Like the original, the pack is lightweight, per Osprey, under 2 ½ pounds in a large. The main compartment holds everything I need on a multi-day trip including a tent, bag, pad, extra clothes and even a bear canister when required, without having to attach anything to the outside of the pack. I pack light, but certainly not ultralight. My pack, with four days of food and two liters of water typically weighs a bit under 30 pounds. The original version handled that weight fairly well, but the update includes a thicker, more comfortable hip belt and shoulder straps. The Airspeed suspension system continues to work like a charm, holding the load steady while keeping a cooling airspace between the load and my back. I'm 6' 2" and the large fits me well. There were a few other changes to the pack. Perhaps the biggest was removing two large outside pockets from the main compartment. They intruded on the main compartment, so didn't add any capacity, but I was sorry to see them go. In one I kept my water filter, first aid kit and odds and ends like spare batteries and duct tape. In the other was my rain gear and pack's rain cover. These items were handy when needed, but left alone when I set up or broke down camp. How I pack just got a bit more complicated. Regardless of that issue though, still a great pack.

Cincinnati, OH


Excellent pack


This is a superb pack. It carries up to 25-30 pounds easily, and will carry 40 pounds, but less comfortably. I go light, but am not an ultra-minimalist. On a recent 5 day trip starting weight was 24lbs. including bear canister. The pack rides perfectly, with no extraneous moment. The side compression straps look small but are well placed and really pull the load together. I am 5-11 and have the medium size. The back stretch panel will hold a shell and maps, and the zip pockets on the waist belt are perfect for a day's worth of trail snacks. The single main compartment allows for flexible packing options, and I like that there are no zipper pockets on the outside of the pack. The top pocket is less impressive in that it doesn't cinch well to the pack. It is removable however, and there is a top flap that cinches cleanly to the same straps that attach to the top pocket. The inner compression strap and duffel-style cord lock work perfectly. The capacity of this pack is perfect for 3-season usage, and I am thinking about how to carry skis with this as it would work well for shorter winter trips. Osprey has done a great job on this pack, with great attention to detail. Highly recommended!

Northern California


Awesome Pack


Took the pack out for the first time on a 2 day 20 mile hike at Grayson Highlands/Mt Rogers VA. With food, eater and gear I had the pack weighing in at just under 30lbs. I don't think it could comfortably go much further than that. The pack performed wonderfully. Super cooling on the back area. My other packs have never done it as well as this one. I have now become an osprey convert. -Thank you

Asheville, NC


Please bring back the side zipper pockets


I bought this pack to replace an older model (the EXOS 58 Ember Orange) that had worn out. This was an awesome pack that I had used on many backpacks, including the John Muir Trail. The new model is also comfortable, light weight and sturdy. However, I only gave it 4 stars because I miss the two side zippered pockets which were great for stashing items that you wanted to get to quickly, like rain gear or hat and gloves.

Cambridge, MA



4.8 16