< Go to Backpacking Backpacks

Hands-on Gear Review

Osprey Exos 58 Review

Top Pick Award

Backpacking Backpack

  • Currently 3.8/5
Overall avg rating 3.8 of 5 based on 3 reviews. Most recent review: September 16, 2015
Price:   Varies from $206 - $220 | Compare prices at 10 resellers
Pros:  Super light,
Cons:  Not super durable.
Best Uses:  Backpacking, trekking, mountaineering.
User Rating:     
  • 1
  • 2
  • 3
  • 4
  • 5
 (3.5 of 5) based on 2 reviews
Recommendations:  100% of reviewers (2/2) recommend this product
Manufacturer:   Osprey
Review by: Ian Nicholson ⋅ Review Editor, OutdoorGearLab ⋅ July 7, 2015  
The Exos 58 is an amazing light pack that is similar in design to Osprey's Atmos series, just lighter. At 2 lbs 8 oz the Exos is the lightest weight pack in our review and one of the lightest packs that has a real frame. It has many great features and felt slightly bigger than its 58 liters would suggest. It is great for backpackers and trekkers as well as alpine climbers and mountaineers. For people traveling cross country, they might want a tougher pack, but for most hikers and backpackers who do the majority of there trips on trails, we think they will be perfectly happy with the Exos's durability. The Exos frame isn't flimsy and carries surprisingly well considering its weight.

New Version Update - July 2015
The Osprey Exos 58 is now available in new colors! Keep reading to find out more.

RELATED: Our complete review of backpacking backpacks

  • Photos
Click to enlarge

OutdoorGearLab Editors' Hands-on Review

The New Version of the Osprey Exos 58 vs. The Older Version

The Exos 58 is now available in two new colors: Basalt Black and Pacific Blue. You can also remove the top pocket and sleeping straps. While this appears to be the only update to the pack, we have contacted Osprey for confirmation. See below for a side-by-side comparison, with the latest version shown on the left and the older model pictured on the right.

Click to enlargeClick to enlarge 

Hands-On Review


The Osprey Exos was surprising comfortable especially considering its exceptional light weight. It was more comfortable than the REI Flash 62 and similar to much heavier packs we tested like the Mountain Hardwear South Col and the Gregory Z 65. The fabric on the inside of the waist belt is cozy and, despite some initial skepticism, we found the shoulder straps quite comfortable even with minimal clothing on.

The pack has well vented from its perforated shoulder straps to the space behind the back panel, making this pack idea for use in warmer areas or people who run on the warmer side. We tested this pack on glaciers but didn't get to use it in a truly snowy environment and we wonder if snow would get stuck in the shoulder straps.


At 2 lbs 8 oz, this pack is half a pound lighter than the next lightest pack in our review and half the weight of many others we tested. For folks whose primary concern is weight but still want a frame, then look no further. This pack is even lighter than many packs on the market that have no frames. You sacrifice a little durability to get such a light package, but not much.


Despite its light weight, the Exos 58 has a relatively solid suspension. It is great for loads up to 35 lbs, but once we crested 40 lbs most of our testers felt that this pack was less capable.

Ease of use

Nearly all the features are well designed and easy to use. We like the two zippered pockets on the back of the pack. They weren't super big, but offered additional organizational spaces for smaller, easily lost items. We could also easily stuff a wind shirt or gloves in there.

The Exos features many smaller-than-normal buckles and smaller 7mm compression straps. But we didn't find that these buckles were much harder to use than traditional-sized clips.

We really liked the stretchy pocket on the back; it was secure and we used it for all kinds of small items that we wanted to be easily accessible or to keep smelly clothing or garbage away from the rest of our stuff. The waist belt pockets are big, but we found you can only use about half the volumne in them when your waist belt is tight.

The "Stow on the Go" system was a little gimmicky. It is a way of attaching the trekking poles to the pack via a stretchy band near the bottom of the pack and an attachment on the shoulder strap, this was not as cool as we thought it would be. While practical for short distances, most testers who needed to stow their poles on their pack for more than 10 minutes just put them put in on the side of the pack where they are more secure.

Adjustability and Sizing

This pack is not very adjustable but it comes in three sizes so you can likely find a pack that fits you well. We find most people shorter than 5'4"-5'5" range might begin to be below a size small and conversely most folks above 6'3-6"4 are starting to get above a size large. So it may be difficult to size this pack for people at the end of each spectrum.

Other Versions

Click to enlarge
Exos 38
  • Cost- $160.00 ($60 less than the 58)
  • Weight- albs 5oz (5oz less than the 58)
  • 20L smaller than the 58
  • Ideal for use as a daypack

Click to enlarge
Exos 48
  • Cost- $190.00 ($30 less than the 58)
  • Weight- 2lbs 8oz (2oz less than the 58)
  • 10L smaller than the 58
  • Ideal for superlight backpacking or thru-hiking


UL Raincover
Click to enlarge
  • Cost - $29
  • Can be used to keep your gear dry from the elements

Ian Nicholson

Where to Buy?

Thinking about buying some gear we've reviewed? Help OutdoorGearLab out if you do. Just click on any of the above seller links and if you make any purchase, the seller will contribute a portion of the sale to help support this site. It won't cost you anything extra, and it's a simple way to help us fund our gear reviews. Thanks!

*Most retailers free shipping offers apply only to lower 48 US states using ground/economy shipping. See retailer's website for details.

OutdoorGearLab Member Reviews

Most recent review: September 16, 2015
Summary of All Ratings

OutdoorGearLab Editors' Rating:   
  • 1
  • 2
  • 3
  • 4
  • 5
Average Customer Rating:   
  • 1
  • 2
  • 3
  • 4
  • 5

100% of 2 reviewers recommend it
Rating Distribution
3 Total Ratings
5 star: 0%  (0)
4 star: 67%  (2)
3 star: 33%  (1)
2 star: 0%  (0)
1 star: 0%  (0)
Sort 2 member reviews by: Most Recent | Most Helpful
Write a Review on this Gear

1 of 1 people found the following review helpful:
  • 1
  • 2
  • 3
  • 4
  • 5
   Sep 2, 2013 - 09:23pm
ilvbp · Backpacker · phx, az
I use this pack for one season. This is a good pack for trail head weight 30 pounds or under. It is very clever and very light. Not super durable and has wimpy buckles, especially the hip buckle. The hip belt is also very narrow. This is all good for short trips and under 30 pounds. Once you go on a extended trip that needs more food and water the pack doesn't work as well and can be uncomfortable on the shoulders. During the season I used it the side pockets starts showing some wear, nothing major, but noticeable. The cleverness is in the skeletal material design used to reduce weight and the classic Osprey ventilated suspension system. Which has another use (i don't think it is intended) you can move your bladder into the space between your back and the pack to make more room in the pack. It puts the water closer to your center of gravity and it also allows the cool water up against your back which feels good. :)

I would recommend this pack for two or three day adventures with available water and under 30.

Bottom Line: Yes, I would recommend this product to a friend.
Help other readers find the most helpful reviews
Was this review helpful to you? 

  • 1
  • 2
  • 3
  • 4
  • 5
   Sep 16, 2015 - 03:13am
Jug · Surfer · Huntington Beach
The good and the bad.

22 days and nights so far, and it seems to have either broken in, or broken me in. It started out rough though, literally. The black breathable materials on the shoulder straps and waist belt are very abrasive and had rubbed me raw after 2 days. The lack of padding also lead to discomfort, and for anyone but small framed/thin people, I feel the shoulder straps just wouldn't reach over enough to utilize the minimal padding that there is. They cut out padding to shave weight it seems, but ya. There goes the comfort they're known for. Another area of discomfort was in the two outer points of the lower frame.They are pretty narrow and made contact to the top of both my buttocks even though I'm pretty thin with a 30" waist. Not sure if it slowly bent wider, but after 10 days or so, the frame felt better.

A Bear canister will fit vertically or horizontal, but due to the air gap between pack and back, I found putting it horizontal at the very top would bring the weight closer to my body, and felt 5lbs lighter in the way it reacted to my body. When I had it vertical in the middle, it was pulling back enough to notice the difference. The bad part about riding it horizontal is that the bear canister will rub on the frame which rubbed through both the hydration sleeve and a little bit of the back panel material in 3 days. Fixed this by putting my trash bag liner between canister and pack.

Now, let's get to the good stuff.
The suspension is second to none besides maybe a very heavy pack, but at 2lb 9oz for the medium, it was amazing from 20-30lbs. At the 34lb mark, it started to struggle. The belt would have to be tightened too much to avoid slipping which caused sore hips.
The breathable back kept me cool and dry and was the main reason I bought this pack.
The back panel itself feels like a comfortable, supportive office chair.
Large mesh side pockets have front and top facing access points making it more usable than most for stuffing water bottles (smartwater 1 liter for me), camera's, or even a rain shell or down jacket into them.
Back mesh pocket also very usable for stow and go stuffing on the fly.
The removable brain was nice when we left a lot of gear at base camp to summit Whitney. Put all my heavy small stuff in it and left it in the tent. Small waist belt pockets stretched more than I thought, enough for 3 trail bars or similar in each.
Chest strap pockets were nice for my iPhone 5 or smaller.

I've owned over a dozen packs and this is one of the better ones for sure. If you're thin and carry a max weight of around 30lbs, this might be your perfect pack. I planned to sell it after my JMT trip, but it did WOW me the last week on the trail and I've decided to keep it.

Bottom Line: Yes, I would recommend this product to a friend.
Help other readers find the most helpful reviews
Was this review helpful to you? 

Have you used the Osprey Exos 58?
Don't hold back. Share your viewpoint by posting a review with your thoughts...

Write a Review on this Gear
Click to enlarge
Osprey Exos 58
Credit: Osprey
Where's the Best Price?
Seller Price
Amazon $206.27  -  6% off!
Backcountry $219.95
REI $219.95
Compare prices at 10 sellers >

*You help support OutdoorGearLab's product testing and reviews by purchasing from our retail partners.
Related Review
The Best Backpacking Backpack Review

The Best Backpacking Backpack Review

We took five of the highest rated backpacking packs and tested them side-by-side for five months to find out which was the very best.
Helpful Buying Tips
How to Choose the Best Backpack - Click for details
 How to Choose the Best Backpack

by McKenzie Long and Ian Nicholson