Spend 100 Get 20 CreditsSpend 100 Get 20 Credits


The big brother of the Aether Series that knows no limits.

Pack up thy gear in the Osprey Aether 85 Backpack and wander into the land of infinite possibilities. The uses for the Aether 85 are almost endless with its large storage space, multiple straps, and gear loops. If you need more space, Osprey’s attachable AddOns (sold separately) make the Aether 85 large enough for longer expeditions.
  • AirScape Suspension includes dual peripheral aluminum rods and a LightWire contoured headrail to keep the weight stable over rough terrain
  • Ridge foam backpanel is covered in grip mesh so you maintain a layer of cool air between your back and the Aether
  • Size-specific IsoForm Harness uses a hook-and-loop strap to allow 4in (10cm) of torso adjustment
  • IsoForm CM hip-belt can be heat-molded to fit your body exactly
  • ErgoPull hip-belt closure tightens the pack to your body, not your body to the pack, so the weight rests on your hips and legs
  • Pack lid converts to a lumbar pack with hip-belt for short hikes from base camp
  • Stow-on-the-Go trekking pole attachment is a loop on the right side of the pack that lets you holster your poles when you don’t need them
  • J-zipper lets you access the main compartment through the front of the pack, so you don’t have to dig from the top

Share your thoughts

What do you think of the

Osprey Packs Aether 85 Backpack - 5000-5400 cu in

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

  • Product review:
  • Share a video
  • Share a photo

How familiar are you with the product?(Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

5 5

Comfort in Adjustability

  • Gender: Male
  • Familiarity: I've put it through the wringer

This pack takes comfort to a whole new level. For being as big as it is and having as much storage space as it does this pack wears like a feather on my back. With with over 14 points of adjustability this pack can fit you like shell to a turtle. I love the inline pocket and designs for adding a hydro bladder to the pack. I use the Osprey Hydraform bladder and it matches up perfectly. I saw the raving reviews and put them to the test in the steep rises and falls of the Ventana Wilderness. First I did a 40 miler with a normal load just to figure out the fit then the next weekend I loaded it to full capacity and went in with 65lbs of gear. While I am not a fan of excessive weight I will say it still wore like a feather on my back. Simply put this is the best pack I?ve had the pleasure of testing.

Want more Gear Reviews?

4 5

Very Nice Pack

Great pack.
I just took it up Lions Head Winter Route on Mt Washington. It was absolutely perfect on the hike up Tucks/Huntington ravine trails to Harvard Cabin where we set up camp. I had it crammed full and it carried very well. My wife has the 65 and we both had pads, crampons, ice axes, Nalgene insulators, snow shovels etc attached via external straps. Lots of options.
I also used the pack to summit the next day which exemplifies one of the areas that I think this pack excels. It compresses down from 50-60lbs to 30-40 lbs extremely well. Obviously not the prototypical summit pack but it was nice that it was even an option. Maybe not so much with a lighter load in warm weather though.
The only downside is that the easy access of the J zipper is somewhat countered by the compression straps which must be undone to gain access. Minor, but a bit annoying if you are carrying a smaller load. It does not carry quite as well any lighter than 25/30lbs. It will start to ride high and pack a little sloppy.
I like this pack very much and will be using it on multiday trips for some time.
The image is of my pack, my wifes 65, and a MH alpine pack.

Very Nice Pack
My Friend and I's Gear.

My Friend and I's Gear.

Posted on

Awesome to see the evolution of backpacking technology. My friend (owner of yellow backpack) Is probably going to invest soon.

5 5

Great Pack

  • Gender: Male

Nothing but good things to say about the Aether 85. Comfortable and well balanced, the pack is flexible in how it can be loaded making it quite versatile. The quality of construction and the materials used are top-notch.

And as always, Backcountry's customer service is second to none!

Load Range™

Load Range™

Posted on

The green to yellow zones represent the recommended load range for this pack.


Ready for the trip

Ready for the trip

Posted on

With this pack I can bring the extras, ie, pillow, plastic hammer, ect. Its not too heavy and has an awesome suspension system. Osprey makes the most complete pack in my opinion. Very good zippers and clips. There is not doubt in my mind I will have this pack for many years.

Responded on

What do you need a plastic hammer for?

how do you secure the shaft of your ice...

Posted on

how do you secure the shaft of your ice axe on this pack? There doesn't appear to be any kind of strap above the ice axe loops that would tie the shaft of the axe to the pack.

Responded on

Do you see the grey bungy looking things in the middle of the pack? Those attach really nicely to the handle of your ice ax. It's hard to explain how the clasp, but once you get an ice ax and play with the clasp, you instantly see how it holds really securely.

Responded on

Zach posted a picture of how to do it. Take a look at it and you should understand.

3 5

Could have been better

I'm quite long(192cm), and this backpack is pretty good on my back, only problem is, if I fill it up too much, the top of the pack is in the way, so I can't point my head upwards, this is a little annyoing. All in all, it is a good backpack, with smart solutions for openings etc. I have only used it twice, but it seems to be somewhat durable. I chose the large, wich is supposed to be 88l, but I have had 85l backpacks before that fits a lot more than this does.

5 5

Osprey Aether 85

I just recently got this pack because I am going to be working at a camp in Montana for the summer. I needed something that will carry my camping and climbing stuff comfortably. This pack is great so far. It sits very nicely on my back and doesn't feel like I am getting pulled backwards when hiking. One thing I wanted to mention though is that if you are planning on getting the Osprey raincover for it, I recommend getting the medium sized cover. I tried the large on it at the store and it was way too big and baggy, even when the bad was packed with stuff. The medium raincover might be a little bit tight if you are planning on packing this bag to its max but for me it should work out just right.
good luck. :-)

2 5

Very well constructed, with one very painful exception

First off, as others have noted, Osprey packs are very well constructed. The pack walls are constructed of a very durable nylon that exhibits at least a reasonable degree of water resistance (despite not actually being waterproof), so light-duty tears don't seem to be a potential problem. There are plenty of compression straps and options for strapping and rigging gear to the exterior of the pack (which is, for my part, every bit as important, if not more so, than the interior capacity of the pack). The shoulder straps and hip belt are solid and provide a snug fit, which is a pre-requisite of any good pack, since conserving energy on the trail is contingent upon being able to limit unnecessary side-to-side movement of the pack while hiking. The AirScape backpanel does a really good job of allowing cool air to circulate in between you and the pack to prevent heat and sweat buildup, and this has a lot to do with the ridged design of the backpanel, itself, as well as the nylon mesh that overlays it. This last feature, however, is the fatal deal-breaker.

The aforementioned mesh is constructed of a very coarsely woven, stiff nylon that is absolutely unforgiving on accidentally exposed skin, especially skin that directly overlays the generally bony parts of the lower lumbar and upper sacral regions of the back. Making matters worse, the lower lumbar portion of the foam backpanel is actually convex toward the body, which is to say, curved into the back, which reduces the effective surface area of the pack's contact with the lower back, thereby focusing more pressure on an even smaller area. As a significant portion of the weight of a pack should be distributed across the midsection and not the shoulders, the convex backpanel and its coarse mesh outer result in a sensation not unlike that of a sanding block being rhythmically and methodically ground into the small of your back with every step you take. Unless you're wearing, say, a heavy fleece or other thick top (tucked in under a belt), you're going to have the blood, blisters, and resulting abrasion scar to prove it. Hiking uphill is especially painful since more of the weight of the pack is focused on the small of the back, and also because aggressive inclined hiking frequently tends to hike the back of your shirt up, thereby exposing the skin to even more torture. Your mileage may vary depending on body type, but for some, I suspect that summer hiking with naught but a t-shirt is going to be a no-no unless you've specifically packed light (which rather contravenes the purpose of buying a 5,200-cubic inch pack) or are prepared to administer regular shots of Toradol into your sacrum.

In short, this was the first pack that, in a relatively short (4-day) medium laden (45 pound) trek, made me second-guess how much I liked backpacking. Some pain and discomfort is always to be expected when backpacking -- your gear is simply designed to limit, not prevent, discomfort -- but this was excessive. I've read similar complaints about shoulder chaffing caused by the Aether 85's shoulder straps (which are covered in a similar, though less coarse, mesh), and I really think Osprey could address the problem by choosing different materials. In the end, you'll need to try the pack for yourself (as you need to do with any piece of gear), but be wary of potential problem areas. Backcountry has an extremely commendable "no-questions-asked" return policy, so you've got nothing to lose if you're theoretically sold on this pack. I have to send this one back, however, and specifically for the sake of my own.

View all contributions... Be patient, it might take a while.