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The Osprey Kestrel 48 is a jack-of-all-trades. With a separate zippered sleeping bag compartment and external sleeping pad straps, it’s a fully functional overnight pack. Or cinch down the StraightJacket™ side compression straps and take it out for a day of peak bagging in the high country.
Whatever you put inside, Osprey’s LightWire™ frame transfers the load to a comfortable spacer mesh harness and hipbelt. This innovative suspension system ensures all-day carrying comfort, especially in warm conditions when the Airscape™ mesh backpanel comes into play.
When it comes time to unpack, the main compartment has top loading or side zip access providing multiple portals to get at your gear without struggle.
Other storage features include a full-length vertical zippered side pocket, top-lid and under-lid zippered pockets, side and front stretch mesh pockets, and two zippered hipbelt pockets.
Along with the extensive pocketry, there are dual front daisy chains and web attachment points on the top lid for anchoring gear to the exterior.
Other useful features include an external hydration sleeve, tuck-away ice tool loops, and Osprey’s Stow-on-the-Go™ trekking pole attachments. The entire pack can be shielded from the elements by deploying the integrated raincover.

Key Attributes


Durable, comfortable and technically advanced, these packs are ideal for multi-sport enthusiasts.

Adjustable Harness

Adjustable harness provides custom torso fit. *Not included in Kestrel 28.

Integrated Raincover

An integrated raincover protects your gear from foul weather. When the sun returns, it stows away in its own external pocket at the bottom of the pack.

Additional Features

  • Sleeping Bag Compartment - Wide mouth access sleeping bag compartment with divider stows your bag out of the way
  • Sleeping Pad Straps - Adjustable and removable sleeping pad straps provide secure extra carry
  • Side Zipper Access - Side zipper access to main compartment allows easy accessibility to the inside contents of the pack
  • Vertical Zippered Side Pocket - Full length zippered side pocket aids organization

Carry Information

LightWire™ Suspension

  • 3.5mm LightWire™ peripheral frame effectively transfers the load from harness to hip belt (not included on Kestrel 28l)
  • Atilon framesheet spreads load across the entire backpanel to the peripheral frame

Airscape™ Backpanel

  • Mesh covered ridged foam allows maximum ventilation while keeping the load close to the body

Spacer Mesh Harness and Hipbelt

  • Soft, edgeless padded mesh offers a soft breathable contact surface and large load support
  • Adjustable sternum strap with rescue whistle


Load Range
25 - 40 lbs.
11 - 18 kg
  Volume Dimensions Weight
S/M 2807 in3 / 46 l 26h x 15w x 16d in. 3.51 lbs.
M/L 2929 in3 / 48 l 28h x 15w x 16d in. 3.68 lbs.
S/M 2807 in3 / 46 l 67h x 38w x 40d cm 1.59 kg
M/L 2929 in3 / 48 l 72h x 38w x 40d cm 1.67 kg
210D Nylon Double Diamond Ripstop
420HD Nylon Packcloth
420HD Nylon Packcloth
Product Manual Additional languages available here �


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KESTREL 38 depicted in image
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Zippered Hipbelt Pockets

Dual zippered hipbelt pockets provide secure storage for often needed items

External Hydration Sleeve

External hydration sleeve in backpanel simplifies refilling and protects pack contents from spills

Stretch Mesh Front Pocket

Large front stretch mesh pocket for quickly stashing extra gear

Tool Attachment

Tuck away tool loops with bungee tie-offs provide secure tool carry

Front Panel Daisy Chains

Dual front panel daisy chains allow for extra external attachment points

Integrated Raincover

An integrated and removable raincover protects your gear from foul weather. It stows away in its own external pocket at the bottom of the pack

Compression Straps

Upper and lower reverse StraightJacket™ side compression straps stabilize load and also serve as external gear carry straps

Stow-on-the-Go™ Trekking Pole Attachment

Osprey’s unique Stow-on-the-Go™ system allows users to tuck away trekking poles quickly without having to remove their packs
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I love this product.


I am a Boy Scout and I do a lot of camping. This has always been by go to pack for all my weekend camp outs. It is a very good size and for a minimalist like me, It suits my needs perfectly.

San Andreas, California

Comfort and durability all in one


I've used this product for multiple overnight and weekend backpacking trips and found that it is a great pack! Very comfortable and easy to fit all my gear. The side load zippers are a huge help when the pack is full and I need to access the bottom. The only difficulty I found was that the sleeping bag compartment on the bottom of the pack is small and can be difficult to load.

Zion National Park


Ready for its Next Adventure!


I'm a woman, and I downsized to the Kestrel 48L from a 50 +10L backpack (nobody needs to carry 60L of stuff on a 6 month backpacking trip - trust me!), and so far I've used it on a 2 month trip through South America and while there are a couple of things that my old bag had that I wish this one did (a small, removable day pack and full frontal access), overall I really love it! I have a very long upper body so none of the women's bags worked for my height, so the only problem I have is that the wasit adjustment doesn't go quite small enough for my waist, but the length adjustment is worth it, and it's still manageable and far more comfortable than the shorter women's bags. I highly recommend this bag for any other women out there that have this problem. I do find the side access a bit annoying as I don't find it super accessible. I read a previous comment that stated you can't remove the bottom compartment flap, but this is false; you can unhook it from the inside, near the back. I prefer the bag without the bottom compartment as I find there is more space this way. The side pockets are a bit tricky to reach when carrying the bag, but I use it for my main backpack and carry a separate daybag for my water, so that's not a concern for me, and I like how strechy yet secure the pockets are. Also, the statement about not being able to use the front pocket when the bag is full is also false; as long as you fill the front pocket first you should notice that the space is fully utilized. In fact, when I took the time to pack properly (as opposed to quickly throwing everything in for a quick hostel change), I found this bag to be a little bit TOO big! It says that you can sinch it up and use it for a day hike, but even then the top pocket buldges and the bag just doesn't sit quite right when it it fully sinched. That being said, I may just invest in the 38L for my next trip and ditch the extra 10L. I love this bag!



I would buy again, extremely comfortable.


I own 2 ospreys, 2004 60 aether (still in excellent condition even after a 650 mile thru hike) and the 48 kestrel. I reduced gear, so I required a smaller pack. I purchased the kestrel in march 2016. Since then the kestrel has been used in utah as a day pack for varies trails and it has been to isle royale michigan for 6 days and 5 nights loaded up to 32lbs. I easily could have loaded it for 7 days. At 32 Ilbs and avg 10 miles a day, the pack was always comfortable. Even during breaks I kept the bag on. Its easily the most comfortable pack i have used. The aether back panel is flat to my back and causes sweating. The kestrel airflow back panel really helps keep my back cool, you still will sweat from hiking but not from overheating. The pockets help with keeping gear organized . The main body of the bag is very durable and still looks new. Also the daisy chains are very handy for hang wet clothes or attaching things too. The hipbelt pockets are a decent size able to hold my sawyer mini, purell or 2 cliff bars. The negatives, the mesh water bottle pouch has some fraying, do to over growth on the trails rubbing it, and I question it's long term durability. The water bottle stretch pockets are the biggest negative, I can't reach or put the bottles back without taking the pack off, the mesh is too high. I think they should add more fabric here to make them pockets, as is the mesh stretches but won't fit all water bottles. Side note the 04 aether mesh pockets are much better designed and stronger. The hipbelt pockets have a flap over the zippers( I believe it's to keep water out) but they are annoying, it's a hassle to do while hiking. Ula hipbelt pockets are much better. Lastly the sleeping bag compartment spacer can't be removed I don't use it, it's not a big deal though you just have to move it out of the away. Overall it's a solid bag, its a day pack to thruhike pack. The excellent fit/comfort far overshadows the negatives. Will use on my 2017 AT thru hike

Cheboygan, Mi


Not 48 L


Not 48 L in size. If the main section is full, the outside side zippered pocket is not useable thus its not a true 48 L bag. It should be classified as a 40 L bag. Also for hiking all day a stronger frame would be ideal.


Good service from a good pack


I bought this pack in Denver more than 10 years ago, after going through 4 big outdoors shops looking for the right bag. Not so big that I want to carry too much, and not so small that I cant carry enough. Since then it has traveled all over the US, Argentina, Chile, Ecuador, Colombia, Panama, China, Vietnam, Laos, Thailand, Indonesia, Bulgaria and Turkey. On the big trips it carried an average of 35 pounds. Some of these were backpacking trips, and some just travel with a backpack, but it does either job well and is very comfortable once I get it strapped in place.

Cotacachi, Ecuador visiting today in NC


Very Good Product, design


I think this newer version looks better than the previous version of the backpack Very good pack, i love this pack ....

Jakarta, indonesia



4.3 7


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