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Osprey Exos 48 Internal Frame Backpack



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Availability: In Stock!

Orders placed in the next 13:29 hours ship today!

Availability: In Stock!

Orders placed in the next 13:29 hours ship today!
Item # OSP1B213M
Focused on ounce-shaving construction but delivering far greater carrying capability than most packs in its weight class, the innovative Osprey Exos 48 offers streamlined performance for fast-and-light thru-hikes and weekend trips. Despite weighing less than 2.65 pounds even in its largest size, the pack comfortably hauls up to 40 pounds!
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Focused on ounce-shaving construction but delivering far greater carrying capability than most packs in its weight class, the innovative Osprey Exos 48 offers streamlined performance for fast-and-light thru-hikes and weekend trips. Despite weighing less than 2.65 pounds even in its largest size, the pack comfortably hauls up to 40 pounds!

An ultra-lightweight 6065 aluminum frame combines with a 3D tensioned breathable mesh backpanel to equip the pack with support and ventilation. Seamless layered mesh on the Exoform shoulder harness and hipbelt provides comfortable padding at minimal weight. Further enhancing fit, the hipbelt utilizes an ErgoPull closure that draws tension along the top and the bottom of the belt. An adjustable sternum strap and load-lifter straps allow you to make on-the-go fine-tuning.

Accommodating users of different dimensions, the pack is available in three sizes: Small best fits torsos ranging from 16"-19" in length, Medium accommodates torsos ranging from 18"-21", and the Large best fits 20"-23" torso lengths. The storage capacity varies based on size, as well: Small offers 2746 cubic inches, Medium provides 2929 cubic inches, and the Large has a 3112 cubic inch capacity.

The top-loading packbag is accessed through a removable, floating lid with dual zippered pockets. An integrated FlapJacket panel protects the main packbag if and when you aren't using the top lid. Stretch mesh pockets on the front and sides offer additional organizational options and keep gear and extra layers close at hand. A small dedicated stretch pocket on the shoulder strap is perfect for snacks, energy gels, or small electronics. Removable side compression straps aid in load transfer and allow you to cinch contents safely in place. Other features include an ice tool attachment loop, cord tie-off points, a small safety whistle integrated into the sternum strap buckle, and integrated, removable straps for lashing a sleeping pad. The pack is hydration system compatible (hydration system sold separately).

The Osprey Exos 48 internal frame backpack is available in your choice of size and color options.

  • Aluminum frame with tensioned breathable mesh backpanel with side ventilation
  • Seamless layered mesh on the harness provides comfort and cushioning
  • Exoform hipbelt with ErgoPull closure and seamless layered mesh
  • Top pocket web loop attachment points
  • Removable floating lid with top-and under-lid zippered pockets
  • Dual, strippable side compression straps
  • Stow-on-the-Go trekking pole attachment
  • Dual access stretch mesh side pockets with InsideOut compression straps
  • Accessory cord attachment points
  • Front stretch mesh pocket
  • Removable sleeping pad straps
  • Removable ice axe attachment with bungee tie-off
  • Sternum strap with integrated safety whistle
  • Integrated FlapJacket cover for lidless use



Best Use Backpacking, Hiking
Access Top Loading
Warranty Limited Lifetime
Volume Small: 2746 cu in
Medium: 2929 cu in
Large: 3112 cu in
Type Internal Frame Backpack
Sternum Strap Yes; Adjustable
Maximum Weight 40 lbs
Material Main: 100D High Tenacity Nylon
Accent: 100D High Tenacity Nylon Triple Check Dobby
Bottom: 210D High Tenacity Nylon
Item Weight Small: 2 lbs 10 oz
Medium: 2 lbs 10 oz
Large: 2 lbs 10 oz
Hydration Compatible Yes
Frame Material Aluminum
Fits Torso Small: 16"-19"
Medium: 18"-21"
Large: 20"-23"
Dimensions Small: 29" x 16" x 13"
Medium: 31" x 16" x 13"
Large: 33" x 16" x 13"
Detachable Daypack n/a


Real Customer Reviews

Average Rating:
(based on 5 real customer reviews)

5 Items

Excellent and comfortable lightweight pack
Reviewed by Paul B. - December 24, 2018

Likes: I think the redesign of the Exos is excellent. If you miss the hipbelt pockets and the shoulder pockets, sure; I can see why you wouldn't like the new pack. However, I find that the hipbelt pockets are too small and the shoulder pockets are just superfluous. You can add pockets later to the shoulders or make due with the ones on your pants. Here's what I like about the redesign:
- Super comfortable. Compared to the Gregory Optic 48, the backpanel feels much better on my back, where the Gregory's lumbar pad is nice but can dig in and be uncomfortable.
- Surprisingly comfortable hipbelt pocket. I was a bit skeptical about the new hipbelt, but it's very comfortable and distributes weight well to your hips. The frame of this pack is amazing. Plus, it folds in on itself so if you just want to use the shoulder straps like a regular backpack, you could. Some people find this as a negative, but I think of it as a positive.
- Tons of room. I had the Optic 48 and this side by side, and the Optic nearly ran out of room with the gear I had in it. The Exos could've easily taken more gear.
- Flap jacket is a nice feature and the removal of the lid is super easy. Some people don't like that this model uses the snap in clips instead of the old clips, and say it adds weight, but if you're not counting every gram/ounce, you'll like the snap ins better.
- More durable stretch pockets. Another negative review I saw a lot of was the added material to the stretch pockets making the stretch mesh pockets smaller. However, if you're smart about how you pack things (which you should be anyway), the stretch mesh pockets are still really large and the extra material adds durability. I think this is a great feature.
- Lightweight. This pack weighs just a hair over 40 ounces and the lid is 5 ounces. If you remove the lid, you're at 35 ounces; under 2.2 lbs. That's excellent for a pack that can carry 40 lbs.

Dislikes: Only two negatives, but they're minor:
- Flap Jacket is not remove-able. To me, not a weight issue but a "nuisance" issue. It can get in the way, but you can easily stuff it. It also adds extra protection from rain to the top of your pack while you have the normal top lid on.
- Space at the bottom corners. Due to the design of the frame, the bottom curves around your back which creates two little pockets at the bottom of the pack. It can be annoying, but the nice part about them is you can put gear that you take "just in case." For instance, I always carry an emergency blanket and some paracord with me. These can be stuffed down into these little corners. You also could put your extra clothes in these corners to fill up space. This creates room in the center for the rest of your gear.

Overall, I really like the re-design of the Osprey Exos, and while some people have said they like the new Gregory Optic over the Exos now, I prefer the suspension and the durability of the Exos. Make sure to figure out what's right for you.

Great weight:function ratio
Reviewed by Bill - October 29, 2018

Likes: If it fits you, perfect bag that removes non-necessary features but doesn't go too far (no hip pockets, single large compartment, less durable material)

Dislikes: Unfortunately, did not fit me and isn't adjustable, so had to return

It good, but could be better.
Reviewed by Adam C. - October 24, 2018

Likes: Light weight. Comfy. Good constuction.

Dislikes: No belt pockets. Straps need to be trimmed back a bit. Some extras on the pack that you may not use.

son loves it
Reviewed by Sally C. - September 29, 2018

Likes: lightweight ,comfortable & loves the colors

Dislikes: none

Great Pack for weekend trips!
Reviewed by Brett M. - April 14, 2018

Likes: Pack is lightweight and incredibly comfortable. Tons of external lash points. Huge fan of the double access side pockets. Perfect size for this 2 and 3 day/night trips with plenty of room for everything you need. The mesh on the back is great for allowing airflow through and helps keep your back cool.

Dislikes: The bend in the internal frame made it difficult getting some larger items down to the bottom but was manageable. And you get used to it after a while. Wouldn't mind having pockets on the hip belt but the side pockets do a good job of making up for it.

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