• Weight (Size large) 1.09 kg
  • Cost $219

Osprey Exos 48 Pack (2015)



Rating: 9.1 / 10
Value for Money 2 / 2.5
Comfort 2.2 / 2.5
Weight 2.9 / 2.5
Durability 2 / 2.5

Osprey Exos 48 Pack (2015) Review

This pack has now been updated with a newer model. The full review of the current model pack can be found here

After doing a shakedown hike a few months out from my 2016 Larapinta Trail trip I decided that my 70 litre pack (that is the recommended minimum size for the Trail) was overkill particularly given it was only about 70% full. With my aim to become an ultralight backpacker over the next few years, I decided to bite the bullet and go for one of the growing number of lightweight packs and as I tend to be a try before I buy kinda guy, I opted for the readily available Osprey Exos 48 pack (in size large this is a 51 later pack).

In my first attempt at setting up this pack I managed to get all my equipment (including four days of food and three litres of water) into the pack but I felt that I was pushing the friendship a bit. Two more repacks and a readjust on how I was packing, saw me comfortably fit all my equipment at a full loaded weight of 14.7 kg (32 lbs). Hardly ultralight but definitely with base weight in the lightweight category.

I have always been a fan of trampoline type pack suspension and the Exos is no exception. I found the pack carried my loads which varied between 10 kg (22 lbs) – 21.3 kg (47 lbs) comfortably and even at the heavier end of the range at no stage did the shoulder straps cut in to me. On the few days that saw the temperature reached approximately 32° celcius (90°F) my back remained sweat free.

One of the unique features of this pack is the removable ‘pack brain’ which allows the weight to be reduced even further but with a loss of  six litres capacity. I’m a big fan of using the ‘brain’ and store my electronics, snacks and valuable for easy access so am unlikely to ever travel sans brain.

This pack has no shortage of pockets. The large stretchy pocket on the back is ideal for holding the tent and other flexible material but it tends to make the pack look ‘pregnant’ as seen in the photos below. The two side pockets hold typical Nalgene style water bottles or other similar sized equipment. The two shoulder strap pockets are ideal for things like hand sanitiser and cliff bars, and the waist pockets are also ideal for snacks and other small bits and pieces. However, I think that these waist belt pockets are one of the negatives of this pack with many of the Exos’ competitors are opting for large pockets that allow more flexibility in packing.

The other main feature of this pack is the internal water bladder storage that requires the removal of equipment from the main compartment to reload the bladder.  While this still tends to be an industry standard I have been spoiled by my larger Osprey pack which has an external bladder pocket.

The other down side is the lightweight material and while it reduces the pack weight it also means you can’t throw this pack around like you can with the traditional heavy weight packs we have been using for many years.

Overall I think this is an excellent pack and it is easy to overlook the few shortcomings. I’ve only owned this pack for just over four months now and it has fast become my favourite pack.

We Like

  • Pack weight of 1.09 kg meaning less stress on the body and with it an easier hike
  • Removable six litre ‘pack brain’ that allows versatility in the pack configuration and the potential to strip the weight down of the pack if not needed. With the brain removed a simple ‘Flap Jacket’ is integrated into the pack
  • Mesh water bottle pockets that stretch to comfortably fit Nalgene style bottles and other accessories. This again allows for packing versatility
  • Large stretchy mess front pocket ideal for storage your shelter plus other flexible equipment. This greatly increases the size of pack carrying capacity
  • Duel zippered waist belt pockets for easy access small items such as snacks allowing for on the go snacking

We Don't Like

  • The pack is made of 100 denier ripstop nylon which is one of the ways it manages to be so lightweight. This lightweight material means that an active hiker will need to replace their pack more frequently. In addition this also means that you need to be careful with handling your pack otherwise tears may occur
  • The waist belt pockets could be bigger
  • The internal water bladder pocket means that you need to pretty much unpack all equipment to remove and fill up the water bladder
  • The pack is extremely popular for hikers doing the American long trails (Pacific Crest Trail, Appalachian Trail and Continental Divide Trail) as well as the El Camino in Spain. If you want to get hold of one of these packs for a particular hike then buy it well in advance particularly at the start of the year

Best Uses

  • Ultralight and lightweight hikers
  • Excellent as a day pack

Buy One

This pack is no longer available as new but the newer model Exos is now firmly entrenched on the market

Other Versions

View showing a ‘Pacific Blue’ version of the Exos 48 litre pack

View from the back. This pack has the removable pack brain still attached


Image showing internal water bladder pocket

Pack waist belt pocket. A bit small for my liking but this issue would be easy to fix

Loaded pack with four days of food and two days of water. The tent and extra water bladder is stored in the outer mesh pocket. This size large pack has a 51 liter capacity. The gap between the back and the pack suspension can be clearly seen


This review was done with product purchased from a retail store by Australian Hiker

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