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Osprey Packs Aether AG 70L Backpack


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    17 Reviews


    Channel your inner bird.

    Equipped with Osprey's Anti-Gravity technology, the Aether AG 70 Backpack will take your mind off the steep, rocky trail and let it soar along the high, exposed ridges and lush alpine meadows you encounter when you're on the trail. The newly reworked back panel is specifically designed to make the pack feel lighter than it actually is through a suspended panel of lightweight mesh that has a barely-there feel when the pack is weighed down with a week's worth of gear. Being the second largest pack in Osprey's Aether line, this 70-liter option is ideal for everything from quick weekend backpacking trips, week-long treks through wilderness areas, and remote summit attempts in rarely visited corners of remote mountain ranges.

    The Aether has been a staple in Osprey's impressive lineup of packs for quite a few years now, so it's no surprise that the AG 70 has an impressive pedigree behind its design. The pack's tried-and-true LightWire frame has been the backbone behind Osprey's packs for years and provides crucial support while keeping weight to a minimum. The adjustable shoulder harness and hip belt allow the fit of the pack to be dialed in to fit your frame size—although, it's worth a mention that the pack is available in four different sizes to fit different torso lengths. When the allure of remote summits draw you into the backcountry, detach the top lid, which converts into a full-featured daypack, and load it up with all the water, snacks, and extra layers you need to get up and down your objective safely.

    • A full-featured pack for week-long treks and thru-hikes
    • Lightweight and breathable suspended Anti-Gravity suspension
    • IsoForm5 harness and CM waist belt support heavy loads
    • Top and J-zip front panel grant access to main compartment
    • Convertible top lid doubles as a small summit pack
    • Integrated FlapJacket lid cover allows for lidless use
    • External hydration reservoir sleeve (reservoir not included)
    • Front, side, top, and waist belt pockets stow additional gear
    • Item #OSP007M

    Tech Specs

    [main] 210D dobby nylon [accent] 210D high-tenacity nylon shadow box [bottom] 500D nylon packcloth
    [small] 67L (4089cu in) [medium] 70L (4272cu in) [large] 73L (4455cu in) [x-large] 76L (4638cu in)
    Anti-Gravity suspension, LightWire frame
    Shoulder Straps
    Waist Belt
    Hydration Compatible
    yes, reservoir not included
    top and front panel
    1 top lid, 2 side mesh, 2 zippered hip belt, 1 front mesh panel
    Gear Loops
    Ice Axe Carry
    Trekking Pole Carry
    Sleeping Bag Compartment
    Detachable Daypack
    yes, removable DayLid
    Fast-pack Option
    yes, intergrated FlapJacket cover
    dual upper and side straps
    Weight Capacity
    [small] 31.5 x 15.75 x 13.4in [medium] 33.5 x 15.75 x 13.5in [large] 35 x 15.75 x 13.4 [x-large] 37.4 x 15.75 x 13.4in
    Claimed Weight
    [small] 5lb 2.5oz [medium] 5lb 3.4oz [large] 5lb 4.2oz [x-large] 5lb 5oz
    Recommended Use
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great Purchase

    • Familiarity: I've used it once or twice and have initial impressions

    Osprey Packs Aether AG 70L backpack
    Intro: 1 backcountry trip
    Performance/Use: I just upgraded to this pack from an REI brand light 65 pack. O boy…this thing is awesome. I am male 6’1, 165 pounds and could have gone M or L, but I feel like medium fit me a bit better. I am quite skinny and not too much padding around the hip or iliac crest and this thing is ultra comfortable. Lots of pockets. The top compartment turns into its own backpack… definitely the best feature of its kind on the market. The daypack is significantly more robust than REI flash 18 which I used to pack in my old backpack for daypacking during long trips. Overall super pleased and would recommend to anyone.


    • Familiarity: I gave it as a gift but have feedback to share

    I haven’t had a chance to really load this pack out for a good trip and this review is just from my initial observation. Fit adjustments are straightforward with enough range to overlap in-betweeners such as myself. Quality materials and craftsmanship are top notch as to be expected with Osprey. Weight is very light for a pack this size, especially considering the detachable pack.

    Looking forward to putting this beauty to the test this spring!

    Osprey Packs Aether AG 70L Backpack

    • Familiarity: I've used it once or twice and have initial impressions

    I will always return to Osprey whenever I need a new pack. Their All Mighty Guarantee is reason enough to trust them. That being said, this pack is fantastic! It is solidly built, with compartments that are well thought out. Overall, the fit of the pack is great and easy to adjust as the terrain/load change. I can’t wait to get this out on the trail once the weather gets nicer.

    Best Pack Ever!

    • Familiarity: I've put it through the wringer

    By far the most I have ever spent on a backpack, I was nervous I had spent too much. Then I got it, and I have taken it on many many long backpacking trips, and shorter camping trips, and even my only luggage for a 2 week trip to Spain. I could not be any more happy with this pack, it hugs my back so comfortably, I can carry everything I need in it, 70L is great. So many awesome details to the product, from the water reservoir, to my favorite, the removable top section of the pack, which, with a couple zips and clips, transforms into a smaller backpack, perfect for when you want to leave most of your things at camp, but want to bring a couple snacks, water, a sweatshirt and maybe a camera while you go summit the closest peak or check out that waterfall a couple miles away. So great! Overall, the pack is a little expensive, but I have not regretted this purchase one bit, and with Osprey's great lifetime warranty I know I will be getting so much use out of this pack for years and years to come!!! Buy this pack!!!

    Great pack

    • Familiarity: I've used it once or twice and have initial impressions

    I was torn between the Aether 70 and the Atmos 65 and just finished a 3 night, 45 mile hike with the Aether which provided a great shake-down. I loved it. The hip belt was a little beefier than the Atmos and kept the pack in place throughout. Roomy enough to make it easy to pack and unload but not sloppy or excessive. There was still sufficient room for a longer hike. Plenty of adjustment possibilities to get the fit to be just right and plenty of straps to snug up the contents. Everything was well thought out and nothing I’d change. Best of all, it made a multi-day load easy to carry and comfortable throughout.

    Love all the updates!

    • Familiarity: I've put it through the wringer

    It was easy to choose another Aether after my last one stayed strong for over a decade of multiple, week-long trips every season. It seems like the pocket configuration is more-or-less the same, because why mess with a solid design? The mesh padding on the hips and shoulders certainly feel more breathable and plush, and the wire frame feels sturdier and lighter.

    Game changing pack from Osprey!

    • Familiarity: I've put it through the wringer

    I upgraded to the Aether AG earlier this summer and I have been incredibly impressed with every aspect of this pack!

    I've used this pack for a handful of 3-4 day backpacking trips around Utah and I don't have any complaints. The anti-gravity suspension system lives up to it's name and is extremely comfortable as well as flexible to make sure you get the right fit.

    Love the detachable lid that turns into a daypack (with it's own water reservoir holder for those day hikes).

    Overall, awesome backpack from Osprey! Would highly recommend!

    Terrible chest strap design

      Second time out, the chest strap slides off. Osprey's advice on how to get it back on is garbage, now the pack is unusable.
      Save your $300.

      Oh Mark! I am sorry I missed your review! I am so sorry this happened to you. It is really frustrating when something like this happens. May I suggest sending the harness back to Osprey and having them send you a new one, or they can fix the old one? I am so sorry again I missed this, or I would have gotten in touch earlier.

      Feel free to get in touch with a GearHead and I can help facilitate this. Let them know I asked you to have them contact me.


      Osprey Rep

      Killer Pack!

      • Familiarity: I've used it once or twice and have initial impressions

      Osprey does it again. The AG (Anti-Gravity) technology in this pack is unbelievable. You hardly notice that you even have a backpack on when you hike with this pack. It really hugs right around you, you don't even need to use the buckles with a light load. The compression straps are a great for veratility in load sizes.
      The best part of this pack is the front and top loading feature, you no longer have to rifle through all of your stuff to get to the shirt in the middle of you pack, you can just open the front of the pack and pull it out. I'd recommend getting the hydration reservoir from Osprey with this pack, it will be compatable with the pack, and you have this fancy little magnet to keep the tube on your chest strap.
      I'd recommend this pack to any backpacker, camper who is looking to spend a few days in the bush, and maybe up to a week if you know how to pack light.

      This Is The Best Pack I've Ever Used!!!

      • Familiarity: I've put it through the wringer

      First trip out of the package for this pack was a two and a half week Medical Teams International trip all over Nepal (in February). This pack took an amazing beating and never quit! From the Besi (bottom of the mountains) to the heights of the most remote Himalayan District of Humla, this pack took it all! I can tell you the comfort of a pack greatly starts to diminish when you are sucking for air at twelve thousand feet (and up) above sea level. This pack was by far the most comfortable pack up there! I've carried this pack in the low lands with highs in the high 70s with high humidity and in the heights of the Himalayas with the highs in the low 20s and everything between. All I can say is I've carried a lot of pack in all conditions over the years, this pack is the most comfortable and the most durable pack I've ever encountered! Such a great product!

      --Patrick Bancke
      Portland, OR

      This Is The Best Pack I've Ever Used!!!

      Backcountry Comfort

      • Familiarity: I've put it through the wringer

      I love this pack. The Anti Gravity suspension system has to be the most comfortable I've used. I sweat a lot and with this system, the pack is lifted off my back to allow air to flow through and help regulate temperature where the pack would otherwise rest and heat further. I've used this pack for numerous activities, including backpacking, ski touring and some mountaineering objectives. The top lid unclips and turns into a great summit pack that is hydration compatible and even has an ice axe loop too. This pack is not the lightest, but I would argue it is the most comfortable, so if that is what you're looking for, then I would strongly recommend this pack.

      Feel free to reach out to me with any sizing questions, or any questions about this pack or anything else.

      Backcountry Comfort

      Detachable daypack in Havasu Creek, AZ

      The detachable lid as a daypack is one of the most useful features of this re-designed pack. It holds a 2L hydration bladder, extra layers, food, and anything else you need for a dayhike. It even easily held my tripod on the outside. I used to have to carry and additional pack for this functionality.

      Detachable daypack in Havasu Creek, AZ

      My go to Backpack for multi-day trips

      • Familiarity: I've put it through the wringer

      I have used the Atmos for years and the updated Aether is a worthy upgrade. One killer feature is the top lid that detaches to become a summit or daypack. It's actually usable and large enough to hold a 2L hydration pack, extra layers and much more. I even carried my full sized tripod on it with ease. This feature alone makes this pack worth getting.

      The AG (Anti-Gravity) on the back panel easily handles weight. I have used it with 50lbs+ with ease. It keeps your back ventilated and not as hot as some packs. The J-zip panel for easy access means you don't need to open the top to get inside your pack. This is an incredibly nice feature and makes accessing items further down in your pack much easier.

      I backpacked hundreds of miles last year and this is now my go to backpack.

      Please call or email me with any questions on this pack, any other Osprey packs, or any backpacking questions you have!

      My go to Backpack for multi-day trips

      Amazing backpack for traveling!

      • Familiarity: I've used it several times

      Since the product page for the 2013-16 version was removed, I'll be reviewing the non-AG version here, so hope you don't mind. :)

      The Aether 70 is a really amazing backpack and suits me really well. I'm currently using it on my big summer trip this year, starting from Montreal and going to Helsinki, Tallinn, Hong Kong, Malaysia, Singapore, and New Zealand. I also tightly compressed a Kestrel 32 inside as I will be carrying that when skiing in NZ, and it has always been by skiing backpack for the past year. Anyway, back to the Aether, although my 19-inch torso probably suits a medium better I chose the small because I found out that when the lid is taken away, the frame of the small Aether is only an inch longer than the Kestrel of which I have used it as a carry on before. So what I did was to pack up until the top of the frame and no higher, and have all my camera equipment in the lid. I detached the lid to carry as my personal item through security, and the rest of the pack as my main carry on. And it worked! So far it has fit on the Boeing 787 and Airbus A350; however, on the older Airbus A320 (with the old interior below msn 3000) the bins were slightly shorter so it was sticking out a bit so I turned it sideways, and there was just one other bag in the same bin. Overall a really amazing backpack and it's probably the best pack of all time.

      I purchased it from the SAIL in Brampton (Canada) at the end of 2016 just before the Aether AG came out, and they offered a discount because of that ($230 instead of $330 CAD). There were some changes in the AG that I didn't approve of at all, most notably the hip belt where they sewn the buckle directly into the belt (like the Kestrel) and that way you can't take the buckle out if you break it. In the 2013-16 design which I have you can take the buckle out as it is not sewn into the belt, and also the triangular design of the hip belt looks really awesome too compared to the AG one.

      Custom Fit AG - FINALLY

        I've been using an Atmos AG 65 for a few years, and it's great. But Osprey sizing for the hip belt has a 36" waist in a Large hip belt, but I wear a medium torso, so I have been extending the Fit-on-the-Fly hip belt out a few inches on the Atmos, and it works well. Now, however, I can get an AG feel with a better fitting hip belt because it's interchangeable on the Aether AG. The foam hip belt is custom moldable like before for added comfort.

        The AG feel on the Aether isn't quite as good as with the Atmos because there is a foam hip belt and not suspended mesh, but the load carrying is better than the Atmos, which tops out around 40-45 lbs (comfortably). I can do upwards of 55-60 lbs in the new Aether. Though who really wants to do that?

        Lastly, the new Daylid is ingenious. I never used the top lid to waist pack feature on packs, but the Daylid is a trick new way of converting that top lid to a really usable daypack. Just unzip, clip in the hidden shoulder straps and BOOM, you have a summit pack that can hold hydration, and has an ice axe loop and keeper. Very nice!

        Overall, you loose a little of that great AG floaty feel with a foam hip belt, but in return you can get a more custom fit and better load carry out of the new Aether AG. Combine that with a truly usable summit pack and this is a great update to an old favorite.

        Is this osprey aether Ag back pack 70L
        Also compatable for women or is this specifically a men’s pack?

        Hey Elise, the Aether is going to be specifically designed as a Men's pack. The women's version is the Aura. That being said either can be worn by either gender the fit will just vary a bit. Usually the women's packs will have narrower shoulders and be a little shorter and stouter. The men's packs will typically have wider shoulders and be a bit taller. If you have any other questions feel free to reach out to me via the information listed above.