Aether 55L Backpack
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Why We Like The Aether 55L Backpack
Osprey designed the new Aether Backpacks with a brand-new fitting system—Osprey's best—and the Aether 55 Backpack is perfectly sized for weekenders and overnighters. The back torso adjusts vertically to customize the fit for all sizes, and On-the-Fly shoulder strap and waist belt adjustments ensure quick-and-easy micro-adjustments that you can cinch on the trail. Osprey not only integrated a rain cover, but also treated the main fabric in DWR in case you don't get the cover on in time. A LightWire frame offers surprisingly stiff rigidity when you're carrying heavy loads, and Airscape mesh provides breathable ventilation on your back.
Details
- Solid-fitting backpack built for weekenders and overnighters
- 55L is the smallest, standard Aether Backpack from Osprey
- On-the-Fly shoulder and hip adjustments ensure a custom fit
- LightWire frame with breathable Airscape back provides stability
- DWR coating and included rain cover offer weather protection
- Compression straps ensure a secure load
- Zippered front panel gives you another way to access the main compartment
- Pocketing and straps offer storage for sleeping bags, pads, ice axes, trekking poles, water bottles, and more
- Item #OSPZ18S
- Responsible Collection
- Bluesign Approved
- Material
- 420HD nylon, DWR coating
- Volume
- 55L (3356cu in)
- Support/Suspension
- [frame] LightWire, [back panel] AirScape
- Shoulder Straps
- Fit-on-the-Fly
- Waist Belt
- Fit-on-the-Fly
- Hydration Compatible
- 3L compatible
- Reservoir Included
- no
- Access
- top, front
- Pockets
- 3 stretch mesh front, 2 zippered waist-belt, 2 stretch mesh side
- Ice Axe Carry
- yes
- Trekking Pole Carry
- Stow-on-the-Go
- Sleeping Bag Compartment
- removable straps, zippered devider compartment
- Detachable Daypack
- floating top lid
- Compression
- [upper] dual side straps, [lower] Inside-Out straps
- Weight Capacity
- 37 - 60lb
- Dimensions
- 33 x 15 x 12in
- Claimed Weight
- 5lb 1.9oz
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 14 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageJune 29, 2024
Great but the rain cover is useless in wind
Other than the rain cover, it’s a great bag. I used it for the first time doing the presidential traverse in the White Mountains and it performed great. It’s easy to load and unload. It has great compression. It was very comfortable with 30-35lbs in it for a day of hiking. The only negative is the rain cover that came with it did not stay on in high winds. It doesn’t have anything built in that holds it to the bag and it relies totally on the elastic draw string. There were 60 mph winds one day and it just blew off. Thankfully I had clipped it in with a carabiner, but otherwise it would have been gone down the gulf and I would have had a very wet bag. My wife has an Osprey Aura AG 65 that has a rain cover with two slots for fitting the hip belt through and her rain cover stayed in place perfectly the whole time. I know I could just buy a better rain cover, but this seems like a miss from Osprey on such an expensive bag.
Originally reviewed on Osprey
December 6, 2023
Size and Fit
My torso is 17" so I purchased the S/M size expecting it to be on the shortest setting. I found I needed to have it just under the longest setting to fit me correctly with the middle of the hip belt on my iliac crest. I think you might be able to squeeze into this pack if your torso is 19" maximum. Easily the most comfortable pack I have tried on, very happy with my purchase.
Originally reviewed on Osprey
September 25, 2023
Great features but TERRIBLE for long days with Heavier loads
This pack has every feature one would want in a pack except for a MAJOR design flaw. It has 2 friction points on the back adjustment system which rub on my back and leave me with two red chaffing marks and bruises after every long hike with heavier loads (40-45lbs). I originally bought this for mountaineering and it was perfect because I was wearing so many layers due to cold weather. Now that I'm using it in warm weather without the extra layers on my upper body, I have found that the 2 adjustment strap connection points rub on my back and have removed the skin and caused painful bruising. I have adjusted the pack a number of times to see if it would help but have found that nothing works. I own numerous packs for every possible situation and although I love the features of this pack it is simply too painful to use in warmer weather when I am not wearing extra layers to provide some protection for my back. I hate to say it because I love the features but coming from someone that wears a pack at least 3 out of 7 days every week, I would NOT recommend this pack. There are many other brands with different designs that do not have this issue.
Originally reviewed on Osprey
September 26, 2022
Thruhiker approved
I got this pack for my AT thruhike. It held up really well, carried the weight well and was comfortable for the entire hike. My pack was between 35 and 50 pounds with full food and water and I didn't really notice much of a difference in how it carried. It is a bit heavy empty, but for the comfort and versatility it was worth it.
Originally reviewed on Osprey
June 7, 2022
Kilimanjaro, Africa
I contribute my success of submitting Mount Kilimanjaro to this pack. It is extremely comfortable and when I was in the military I could really use this.
Originally reviewed on Osprey
December 30, 2021
Pack is amazing! The ""waterproof"" pack cover wets-down.
Pack is amazing! The ""waterproof"" pack cover wets-down. Had the cover wet down after an hour of use. Had the brain of the pack drenched. This was the first time even exposing the cover to rain and snow showers. This was the first time using the pack overall!
Originally reviewed on Osprey
August 24, 2021
A comfortable workhorse that can carry it all!
This is a great pack for multi day trips. Would recommend for experienced and novice backpackers.
Originally reviewed on Osprey
July 19, 2021
My First Purchased Backpack
This is the first backpack I've ever purchased for myself. I shouldn't have waited so long. I've used ruck sacks, backboards, less modern equipment before and the difference is unbelievable. I can wear this pack all day lugging 50 or so lbs and not feel it in my back or neck at all. It carries enough of what I need, and if I need additional carrying capacity, it's easy to attach gear externally. I am very satisfied with this backpack!
Originally reviewed on Osprey
June 13, 2021
Buy a different pack
I haven't even gotten to use this pack yet. I was in the process of adjusting the straps and.....don't make the mistake of fully extending the adjustable hip straps. When fully extended, they don't go back into the pack while the frame is in the pack. Guess what? Taking the frame out of the pack and putting it back in is an absolute nightmare. It's an hour endeavor getting it back into the pack properly. Prepare to swear at your backpack. Bonus, the fit in the frame pocket is so tight that the seam by the zipper ripped when rezipping! Would not buy again. Usually a big fan of Osprey but this pack has been a huge frustration and I haven't even taken it outside yet.
Originally reviewed on Osprey
April 9, 2021
Awesome Pack!
I had an Aether that was 10 years old and recently replaced it with this pack. I was nervous at first because I was told that you would either love or hate the new suspension system. Well, I love it. The pack is so comfortable and hugs your body. I raved about it so much to my wife that she bought one too. She used the pack for the first time this weekend and loved it also.
Originally reviewed on Osprey
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