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Osprey Packs Atmos AG 65L Backpack


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    14 Reviews


    It's all in the fit.

    It's simple: the comfier the backpack, the comfier the hike to camp, and the comfiest backpack is the one that fits best. The Atmos AG 65 Backpack is Osprey's best-fitting, most ventilated, and comfiest option for multi-day treks. Multiple adjustments running vertically and horizontally place the padded shoulder straps and suspended mesh back panel right where you want them, and the padded Fit-on-the-Fly waist belt lets you buckle, cinch, and go without hassling with a bunch of micro-adjustments.

    • Osprey's best-fitting backpack for multi-day treks
    • 65L capacity suitable for multi-day or weeklong adventures
    • Anti-Gravity suspension is well-ventilated and cushioned
    • Shoulders adjust up and down back panel for a custom fit
    • Fit-On-The-Fly waist belt ensures a quick-and-easy fit
    • Removable FlapJacket top lid minimizes weight
    • Internal sleeve accommodates 3L hydration reservoirs
    • Bottom sleeping bag compartment and removable sleeping pad straps
    • Item #OSP00AL

    Tech Specs

    [main] 100D x 630D nylon dobby [accent] 210D high tenacity nylon [bottom] 420HD nylon packcloth
    [small] 62L (3783cu in), [medium] 65L (3967cu in), [large] 4150cu in
    Anti-Gravity suspended mesh, LightWire tensioned frame, ExoForm wrap upper
    Shoulder Straps
    Anti-Gravity mesh
    Waist Belt
    Hydration Compatible
    internal sleeve (3L capacity)
    2 side, 1 zippered top, 2 zippered waist belt, 1 front mesh
    Ice Axe Carry
    Trekking Pole Carry
    Sleeping Bag Compartment
    Weight Capacity
    30 - 50lb
    [small] 32.28 x 15.35 x 16.14in [medium] 34.25 x 15.35 x 16.14in [large] 36.22 x 15.35 x 16.14in
    Claimed Weight
    [small] 4lb 6oz [medium] 4lb 7oz [large] 4lb 8oz
    Recommended Use
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great pack!

    • Familiarity: I've put it through the wringer

    I like this pack a lot. I bought it for hiking/camping/backpacking and it has performed well in all three areas. Lightweight and breathable, lots of storage space, and it looks sharp as well. I love Osprey's guarantee on their products so this bag was a no brainer when it was time for a new one. I use Osprey for 90% of my packs and wouldn't hesitate to recommend them to anyone.

    Great pack!

    Great first pack

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

    This is the first pack I've ever owned and I fell in love with ever since I put my eyes on it. I have a red med. pack (6'2"), and it looks amazing. I've taken it on a couple of hiking and after breaking it in a bit it works great! I love the compartmentalization that it has, as well as the ledge separating the bottom from the top (if you want). All the straps help keep it tight and secure without any sliding. I did get squeaking like the others mentioned after using it a bit, but it went off and on. We'll see if it continues. Used for a day hike to carry all my friends stuff, as well as a weekend trip. I handled everything with room to spare. Can't wait to take it out on more adventures.

    It squeaks

    • Familiarity: I've used it several times

    Pretty good bag. The suspension holds weight super well. And I like how specific you can get when making adjustments to the frame. The big drawback for me was that it squeaked. With. Every. Step.

    I looked into this and it seems to be a common problem with the pack. I would look elsewhere until they get this sorted out, or allow for time to return it before your trip to mountains.

    A Light Versatile pack

    • Familiarity: I've put it through the wringer

    I use this pack for just about all my ventures, whether it be hiking, backpacking, climbing, and even ski mountaineering. I love how easily the zippers can be closed, as well as the various compartments around the entire pack. The added storage in the hip belts is a huge plus, as well as the removable brain. The only reason I gave this pack 4 stars instead of 5 is because the pack can get a little uncomfortable after about 35 pounds, but this very well could be becasue I need the pack fitted a bit better. Other than that, this pack is a phenomenal do-it-all pack.

    A Light Versatile pack

    Great pack for light to moderate loads.

      Just finished three days hiking over the Tetons. Fully loaded my pack weighted 40 pounds this is about the limit of what I would carry in this pack. That being said if you are carrying less than that this pack is very comfortable and adjustable. It has a great set of features it would be nice to have an integrated raincover but that's not a deal breaker. I highly recommend this pack.

      95% of the way there

      • Familiarity: I've put it through the wringer

      Brain can't be used as a daypack
      Does not include rain fly
      Large was almost too big for me and I'm 6'4"
      Breath-ability was fantastic, pack did not strain my shoulders, large easy access pockets on the hips great for storing snacks, very well made, and of course lifetime warranty!

      Nick, you list 2 of the big requests that forlks have about this pack. A couple reasons why we do not include those two specific features:
      1) We are trying to keep the weight of the pack down; adding these two things would add almost 1 pound to the pack.
      2) these two features would add a minimum of $40-$50 to the retail price of the pack. No Bueno!

      So we do sell the raincover separately as an option, and if you want the detatchable pack, we give you the option of going up to the Aether AG for the DayLid. Hope this makes sense!

      Thank you for writing -
      Osprey Rep

      Great Little Pack

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

      I've only had this out on one hike but it was a game changer over my old pack. Make sure to measure for the correct sizing, both pack size and hip belt sizing, and then get the hip belt molded to you(your waist/hips will thank you after your first real use). It was a tight squeeze to carry an early spring backpacking load for a 4-day Smokies AT section hike. The AG system is unbelievable how it makes 35# load feel lighter than 27# did in my old pack. The detachable lid/day-pack works great for base-camp day hikes as well as for using the pack for civilized travel as well. Almost everyone in our backpacking group has converted to AG packs after seeing them in action.

      Perfect Pack

        I ordered this pack for my Havasupai trip in October. It’s going to be a 5 day trip and needed something big enough to haul all my gear and supplies for that length. I’ve tested it out on shorter trips and it fits like a dream. So much room and so many features. I can fit so much and the weight distribution makes it feel less than it is. The ventilation for cooling will be very helpful in the desert.

        GET IT

          What a beauty! I love my Atmos AG 65. I got my wife the Aura AG 50 as well because I figured it would be the best pack to get her. The quality of these backpacks is remarkable. Also, the lifetime warranty is unbeatable.

          Comfort was key in decision making. We used the size chart and everything matched up great!

          Love love love

          • Familiarity: I've used it several times

          This is by far the best backpacking backpack I have ever owned. I love the back padding because it breathes so well while I hike. I also love the adjustable shoulder straps. I wish It had a side zipper or bottom zipper so I could reach my supplies without having to pull everything out of top to get something in the very bottom. Lots of places to hook carabiners to carry other stuff. So over all I really love this pack!

          Unanswered Question

          Do you think one could fit a 60 meter climbing rope in the bottom sleeping bag compartment? 60m rope bundled up in a rope bag? I'm looking to use this pack for two main purposes: 1) winter backpacking (I usually use a lighter pack for summer backpacking) and 2) hauling traditional climbing rack + other climbing/personal gear out to the crag. Thank you!