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When the trail is long and ounces count, reach for the Osprey Exos 48. Made with the ultralight thru-hikers in mind, everything about this pack is light and fast. The mesh Airspeed™ Suspension stabilizes the load and simultaneously provides maximum airflow for high-output ventilation. The 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 Continental Divide or the Colorado Trail, the Exos 48 is the tool for the job.

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 2746 in3 / 45 l 26h x 14w x 12d in. 2.23 lbs.
MD 2929 in3 / 48 l 28h x 14w x 12d in. 2.31 lbs.
LG 3112 in3 / 51 l 30h x 14w x 12d in. 2.4 lbs.
SM 2746 in3 / 45 l 66h x 35w x 30d cm 1.01 kg
MD 2929 in3 / 48 l 71h x 35w x 30d cm 1.05 kg
LG 3112 in3 / 51 l 76h x 35w x 30d cm 1.09 kg
100D High Tenacity Nylon
100D High Tenacity Nylon Ripstop
100D High Tenacity Nylon Ripstop
Product Manual Additional languages available here �


I love the exos 48


I got the Exos 48 because I needed a backpack. When it came, I was surprised by how much it could hold. The Exos 48 is perfect for any adventure.

Norman, Ok


Simple, Perhaps Too Simple


I get that this pack's purpose is to be as light as possible, which it is. However, some design features could be a tad better. The top lid is nearly useless on it's own, so don't expect to use it unless it's attached. There is no rain cover, so you have to purchase and carry that separately. It has sleeping pad straps, however....the point of this pack is to be light; those using this pack for min. weight will also be sleeping light. Therefor, they are most likely not going to be carrying a closed-cell foam pad. My main dislike of this pack is that it is completely inconvenient to pack and unpack. You must remove everything to access and load your sleeping gear. I would rather forfeit the lower compression straps and have a zipper at the bottom to access my sleeping bag. Lastly, it's color options are both being black. The air circulation is amazing, but the black just sucks up all the desert sun and heat. A lighter color would be nice...for all pack models.

New York


A great pack for overnight or thru hiking


With my aim to become an ultralight backpacker, 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 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). 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 degrees celcius (90 F) my back remained sweat free. This pack has no shortage of pockets. The large stretchy pocket on the back is ideal for holding the tent and other flexible material. 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. Overall this is a great pack and one that I would highly recommend. All Osprey need to do now is to increase the size of the hips pockets and this pack will be perfect.

Canberra, Australia


Wider Belt Option Please!


My husband has the Exos 58. I have a larger, heavier Osprey pack, wanted a lightweight for 2-4 days of backpacking. I am 5'9", about 150, with a 19.5 torso. There is not a women's equivalent to the Exo, in terms of weight especially. Really wanted the 48, but my hips are wide (as are many women!), about 37.5, and the padding ends with the buckle just where my hipbone protrudes. I wish they had extended the padding about an inch, or had an option for a larger one. Other then that, seems like a great pack, but deal breaker for me. Would only recommend this to those with skinny hips!



Nicely been


I would say that I am minimalistish. It's a great pack served me well for the last year. Has way better airflow than my Volt 65. I would also say that you want to keep the weight around 25 pounds after that it doesn't carry well I will say this my wife tried it on and said there wasn't enough padding around the hips for her.

Norfolk , VA


Amazing fit!


I love this backpack and have taken it around the world with me. I highly recommend it to anyone travelling abroad, planning on carrying it all day long.

Victoria, BC, Canada




In contrast to the above reviewers, my EXOS 40 is generally loaded well over 30 lb: my loads average 37 lb. The extra weight is due to water: in Australia we have few water sources, so it all must be carried. I've been very happy with the ability of this pack to carry th load: after 50 km or so I get a few black bruises, but this is probably more due to my body type (featherweight) than the bag. The problem is certainly far less noticeable than any other packs I've used. Great mesh pockets that don't get caught up on scrub, excellent harness, nice and light, subdued colour for avoiding attention: all very important things to me. I think I'll stick with Osprey from now on: they make good gear.

Sydney, Australia


Great but not excellent. One more iteration, Osprey, please.


I was using the prev version of Ospery Exos 46 for about 4 yrs and totally loved it. I warrantied it (broken buckle) and they sent me a new Exos 48. * I really really miss the front zip pocket of the old Exos 46. It was very useful for small items. Now everything has to go in the main compartment, which is annoying for things like first aid kit, TP, small gloves, socks. Essentially you only have the lid for these items, which is not enough. * Shoulders seem too fat (heavy?) and could be made slimmer, as this pack is not designed to carry heavy (30+ lbs) loads. * It's heavier, although only by a few grams, than its predecessor. I expect every iteration to be lighter! Why don't you use new space materials like cuben fiber? * hiking pole carry is a great feature. I use it rarely tho, b/c I have the UL BD carbon z-poles (highly recommend, btw) which can only be folded in 3 (too short for the carry system) or fully expanded (too long for any prolonged walking periods). And in any case, i'm almost always using my poles. Only for the final summit push (I do a lot of mountaineering w/ this pack) I stow away the poles. In which case they go in the side compression pockets (either ask friend, or take the pack off). * inside-out compression straps work remarkably well. Perhaps an weight saving option, Osprey, is if you use 3-5mm cord instead of dyneema as compression line. Smth like MSR uses on their tents. Function will be the same, I recon. * Love the new stretch pockets that ACTUALLY stretch (compared to the old Oxos where they barely do). Also, there's a second hole from the side that can be accessed w/ the pack on - for water bottle or gloves. * belt mesh pockets can be zipped open closed w/ one hand in both directions! amazing improvement. * belt and buckles seem overkill and too wide (50mm?) & heavy. Old Exos 46 had them super slim (15mm?) and it worked great. * I don't get why they put the rope carry top compression strap INSIDE the pack. Old Exos had it out.

Waterloo, ON


thru-hiked the PCT in '16. Loved this pack!


my base weight was a little over 10 lbs and I used this pack (without the lid) for the northern half of a 2016 PCT thru-hike. I loved it. I was using the Exos 58 (a LOT of people used that pack happily the whole way), for the first half but other than the high Sierra, it had way more room than I needed. If I did it again, I'd take the 48 the whole way and maybe just use the lid during the high Sierra bear cannister section. A lot of people had holes develop in the mesh pockets, but if you're careful where you set it down, you'll be fine. I just washed the pack off and after 1,300 miles, it looks brand new. Definitely use a waterproof liner if you'll be in any rain.

seattle, wa


AT Thru-hike


Took this pack on my AT Thru hike, like many other hikers. Almost half the hikers I met were carrying this pack, and for good reason. Light weight, easy to pack, quite comfortable with the trampoline back, even in hot humid weather. Could use more padding on the hip strap IMHO. Top zipper had a tendency to get stuck. Web mesh pockets couldn't stand up to Maines pine limbs that tore them up. True on the weight load, 35 lb comfortabley, and able to carry more with difficulty.

Springfield, MA



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