Cinnabar Red
Cinnabar Red
Cinnabar Red
Graphite Grey
Absinthe Green

Osprey Atmos 50 AG Pack

Osprey Atmos 50 AG Pack is rated 4.6 out of 5 by 25.
  • 2016-10-22T08:48CST
  • bvseo_cps, prod_bvrr, vn_cps_3.4.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_25
  • loc_en_US, sid_10270402, PRD, sort_relevancy
  • clientName_moosejaw
4.6 Star Rating

Select a Size Select a Color

When will I get my stuff?

"In Stock" means this item is ready to ship. Orders placed before 3pm EST using Ship Speeds of 1-5 Days will ship SAME DAY. Orders using 5-10 day shipping will ship within one business day.

"Ship Date" means we'll special-order the product for you and this is the date we expect your shipment to leave our warehouse.

"Oversized" means the item is too large for 5-10 Day Shipping (Free over $49) and can only be shipped via 4-5 Day Shipping. Additional shipping charges may apply.

"Freight" means the item is too large for 5-10 Day Shipping (Free over $49) and must be shipped by truck freight for an additional fee. Someone must be present to accept delivery so we will call to schedule.

If you have any questions, please Live Chat one of our sort of smart customer experience personnel. If you are one of the few that enjoy speaking to real human, please call 877-666-7352

Add to Cart
+ earn up to $22.99 in Rewards
Moosejaw Rewards: You earn MJ$10 for every $100 you spend on or at our shops (MJ$2.50 for discounted items).

So if you buy a $200 jacket at, you can turn around and get a $20 tee using your Rewards on

You are signed up automatically when you give your email address and you’ll earn points as you shop. So easy.

For full program info, see:
Rewards Program Details
Add to Wish List
- +
Product Description Item No.   10270402

The Osprey Atmos 50 AG Pack is a four pound pack for backpacking and thru-hiking your way through the wilderness. AG = Anti-Gravity, originally born in 1993, but 2015 provides a new take on the system with 3D contoured suspension, allowing you to move and wear the pack, all while feeling as if it isn't even on. Sounds like some real spacey, high-tech stuff. The mesh and die cut foam at the harness with the Fit-on-the-Fly™ hipbelt only adds to the comfy carry. The rest of the pack is all about convenient features for carrying your gear, from the removable floating top lid (with two zippered stash pockets on it) to the zippered sleeping bag compartment at the lower section. Compression straps cinch the load in for stability and an internal reservoir sleeve provides a handy spot for hands-free hydration. Last but not least, throw your camera and your favorite snack into the zippered hipbelt pockets and off you go to the next camp.

FEATURES of the Osprey Atmos 50 AG Pack

  • Floating, extendable top lid can be removed to save weight
  • FlapJacket provides compression and protection for the main pack when the lid is removed
  • Dual ice tool loops
  • Removable sleeping pad straps provide secure gear attachment when needed
  • Dual zippered front panel pockets provide quick access storage
  • Adjustable harness allows you to easily adjust the torso length
  • Compression straps stabilize pack loads
  • Stow-on-the-Go trekking pole attachment makes for quick and easy storage
  • Fit-on-the-Fly hipbelt extends hipbelt by 5 inches, giving you a custom fit
  • Suspended mesh hip wrap for load transfer and comfort
  • Anti-gravity backpanel made of lightweight mesh provides comfort and ventilation
  • Internal compression
  • Internal reservoir sleeve

- + Product Specifications
Weight (Small): 3 lbs 15 oz
Weight Capacity: 40 lbs
Weight (Medium): 4 lbs
Disclaimer: We only ship this brand to US Addresses.
Product Technology: Osprey Anti-Gravity, Osprey Peripheral Frame
Fabric Details: 210D Nylon Double Ripstop
Weight: 192 oz
Dimensions: 31 x 14 x 16 in.
Pack Capacity (Large): 53 liters / 3234 cubic inches
Weight (Large): 4 lbs 1 oz
Pack Capacity (Small): 47 liters / 2868 cubic inches
Pack Capacity (Medium): 50 liters / 3051 cubic inches
Gender: Mens
Features: Detachable Lid, Ventilated Back Panel, Load-Lifter Straps, Hip Belt, Hydration Compatible, Hip Belt Pockets, Ice Axe / Trekking Pole Loops, Compression Straps
Best Use: Hiking, Backpacking
Pack Capacity: 50 liters / 3051 cubic inches
Frame Type: Frameless
Pack Access: Top
Osprey Anti-Gravity

Osprey Anti-Gravity
Using Osprey's peripheral suspension design this lightweight, body contouring, three dimensional suspension literally allows the wearer to move as if they don’t have a pack on. Seamless suspended mesh from the shoulder blades to the lumbar and even into the hipbelt region disperses and balances the load like nothing ever has before.

Osprey Peripheral Frame

Osprey Peripheral Frame
Peripheral frame was a departure from the norm many years ago and it’s still the foundation of our gear hauling packs. A wire frame runs along the outside of the backpanel directly connecting the upper load lifters and the central core of the pack to the hipbelt to transition and spread the load. Allowing natural torsional movement, effective adjustable torsos, and different load range and backpanel builds makes this suspension design truly innovative.

Men's Packs
PACK SIZE One Size X-Small Small Medium Large X-Large S / M M / L
Xenith - - - 18 - 21 20 - 23 22 - 25 - -
Aether (*excludes 60L) - - 16 - 19 18 - 21 20 - 23 22 - 25 - -
Volt 17 - 22 - - - - - - -
Atmos AG - - 16 - 19 18 - 21 20 - 23 - - -
Stratos, Manta AG (36L, 28L), Skarab (32L, 24L) - - - - - - 16 - 19 18 - 21
Kestrel, Talon, Kamber - - - - - - 16 - 20 19 - 23
Volt - - - - - - 16 - 19 18 - 21
Manta AG (20L), Skarab (18L), Raptor, Viper 17 - 21 - - - - - - -
Waypoint 17 - 22 - - - - - - -
Unisex Packs
PACK SIZE One Size X-Small Small Medium Large S / M M / L
Exos, Variant - - 16 - 19 18 - 21 20 - 23 - -
Escapist (*excludes 18L) - - - - - 16 - 20 19 - 23
Daylite 15 - 22 - - - - - -
Mutant, Radial, Farpoint - - - - - 15 - 19 18 - 22
Kamber Abs - - - - - 16 - 19 18 - 22
Rev Available in S / M and M / L. Select the size that matches your typical apparel size.
Zealot 15 - 21 - - - - - -
Syncro - - - - - 16 - 19 18 - 21
Women's Packs
PACK SIZE One Size X-Small Small Medium Large XS / S S / M
Xena, Aura AG - 14 - 17 16 - 19 18 - 21 - - -
Ariel (*excludes 75 / 55L) - 14 - 17 16 - 18 18 - 21 20 - 22* - -
Viva, Wayfarer 14 - 19 - - - - - -
Sirrus - - - - - 15 - 18 16 - 20
Kyte, Tempest, Kresta - - - - - 13 - 17 16 - 20
Mira AG (34L, 26L), Skimmer (30L, 22L) - 15 - 18 17 - 20 - - - -
Mira AG (18L) 15 - 18 - - - - - -
Skimmer (16L) 15 - 19 - - - - - -
Raven, Verve 14 - 18 - - - - - -
Kid Carriers + Kids' Packs
PACK SIZE One Size Age
Ace 75 14 - 19 11 - 18
Ace 50 13 - 18 8 - 14
Ace 38 11 - 15 6 - 11
Jet 18 13 - 17 8 +
Jet 12 11 - 15 5 +
Hydrajet 11 - 15 5 +
Moki 11 - 16 5 +

Please note that the info provided above refers to the torso size each pack will fit, and NOT any dimensions of the pack. Below are some steps for how to get your torso length. You should probably have someone help take this measurement for you so it is accurate. And they might accidentally touch your butt.

• Start at the iliac crest, which is the top of the hipbones on the side of your body. These act like a shelf for supporting a pack hipbelt.
• From this level on your spine, measure to the C7 vertebrae, the knobby bone at the base of your neck when you put your head down.
• Make sure you keep your back as straight as possible while measuring.
• This torso measurement determines what size Osprey pack you should carry. Refer to the size charts above to find your ideal size.
• If you are in between sizes, it is ideal to try them both on before ordering.

• Measure around your hips at your iliac crest, NOT your waist.
• A properly fitted hipbelt rides centered over the hipbones and needs to be very snug.
• The padded portion should wrap well around your hips, leaving a gap of 3 to 6 inches between the tips of the both hip pads when securely tightened.
• Refer to the Hipbelts size chart above to help determine your ideal Osprey pack size, but again, your torso length is what should determine your pack size, NOT the hipbelt.

Rated 5 out of 5 by from Love this pack Mandatory Prologue. I was asked at the last minute to go on a 25 mile trip into the High Uintas and needed a solid pack to help with the trip. I had been looking at getting an Osprey pack for a while and I loved the Osprey guarantee that backed it up. When I made up my mind, I put in a last minute order to MooseJaw and selected two day shipping that I thought would get it to me prior to my trip on a Monday. After checking with "Shrek" in customer service, I realized that even with two day shipping, I wasn't going to get it in time. Needless to say, their customer service was amazing resulting in a customer for life and a pack for the trip. The review. I was a little concerned because I had tweaked my back a couple weeks prior to leaving and that regardless of the pack I purchased I would be feeling it the whole trip. But after a week with this pack on my back, nothing. My back felt great without a hint of strain. It hugged my back like a good pack should. It's solid and well built with every consideration of the little things, that on the trail, end up being the big things. The pockets kept everything close at hand and accessible. The pack seems like a perfect blend of ruggedness and durability. I was a bit skeptical of the AG (Anti-Grav) system but if that's what saved my back, it worked better than I could have expected. And without the sweaty back that usually comes with the extended use of a larger pack. Like with most packs, there are areas that I can tell will wear more quickly, however with it being Osprey, I have zero worries about it. Overall great pack. Oh, and I had a great trip.
Date published: 2015-08-04
Rated 5 out of 5 by from You won't be disappointed This bag is great - I am an avid hiker but hadn't gone on multi-day backpacking before. I used it days after my purchase for a 2 night, 3 day backpacking loop in Virginia in September - let me just say.... the back mesh really is the most comfortable bag I've tried. The pockets on the hip belt are wonderful - kept my phone and camera in each. I loved how it was easy to adjust even after getting it on your shoulders. I guess my only gripe is that I did experience a little bit of soreness around the hip flexors by day 2 - but I think this is inevitable with any bag as a lot of the weight is being distributed here. Regardless, it's a great bag, very comfortable, and you won't be disappointed.
Date published: 2016-09-19
Rated 5 out of 5 by from Too I bought this bag to thru hike the AT with. I Did a 31 mile section this weekend. It's possibly the best pack I've ever owned! The mesh on the back really helps control the heat from your body. I'm pretty sure Harrison Ford owns at least four of these. This pack also helped the USA win WW 2......
Date published: 2016-03-01
Rated 5 out of 5 by from So Far, So Good I purchased this pack a little less than a month ago, and finally had a chance to take it on a short trip last weekend. I loaded it up with gear, food, water, and some extra goodies just to see how comfortable it will be walking with heavy loads (my eventual plan is to use this pack on an AT through Hike). I only hiked a total of about 11 miles, but the pack was very comfortable. The suspension system offers a noticeably more comfortable carry, maintaining the majority of the load comfortably on the hips. I only wish that this 50 liter pack had the extra straps for tent or sleeping pad that the 65 liter has. Otherwise, features seem to be the same. It's just a matter of how much you want/need to carry. I did lash some fire wood onto the outside, as collecting wood was not allowed in the park and my friends and I were determined to have a fire, and the load was still manageable. Probably totaled between 50-60 lbs. I'm 6'5" and thin, and this pack fits great (medium size for me, as I am mostly legs).
Date published: 2015-12-24
Rated 5 out of 5 by from Solid pack Bought this backpack based on a few posts on Was originally going to get the 65L, but everyone said that you can fit what you need in a 50L -- they were absolutely correct. Went on a 3 day trip and had more than enough room. The biggest downfall of this pack is that it does not have sleeping pad straps. There are ice-pick straps though, so you are able to fasten it to that using either cord or buckle straps. Other than that, this pack is extremely comfortable and breathable. Certainly lives up to the hype. 10/10.
Date published: 2015-09-21
Rated 5 out of 5 by from Backpacked Europe Backpacked Europe for 51 days summer of 2016. Pack was the perfect size! We flew American Airlines to and from Dublin- we were able to use our bag as our carry on - no problems or questions. Stuffed full as 51 days is a long time! Flew smaller airlines between countries in Europe- still no problems using as a carry on! Quick to pack since we used packing cubes. Due to the awesome back support it is a little funky shaped along the back- but no difficulties with it. Can't wait to start using it on weekend adventures :)
Date published: 2016-10-06
Rated 3 out of 5 by from this is not the one for me Looks great. Has all the bells and whistles minus a rain cover. A bit hefty. I am slim so when I adjusted the hip belt It was as far in as it could and just felt like it needed to be tighter. The hip belt is so bulky that when walking up stairs for example it wouldn't allow me to take a big step up without it restricting my forward leg motion. the crease in the hip belt were the black fabric meets the grey mesh was digging into my hip the whole 45 mile hike. It was not a comfortable pack that I was hoping for.
Date published: 2016-05-30
Rated 5 out of 5 by from Amanzingly comfortable even when fully packed I have taken this pack out a few times on weekend trips and have loved it. The pack sits well on my hips and carries the weight well. The 50L pack is the perfect size for me, I can carry all my essential gear with room to spare for food. Not have a rainfly with the pack was a bummer but easy to add one to an order before check out. If you are looking to go light and fast this is an awesome pack for you. If you like to carry a little more than just the essentials you might be better off getting the 65L pack.
Date published: 2015-04-16
  • 2016-10-22T08:48CST
  • bvseo_cps, prod_bvrr, vn_cps_3.4.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_25
  • loc_en_US, sid_10270402, PRD, sort_relevancy
  • clientName_moosejaw

Free Shipping
Spend $12 in Moosejaw products OR at least $49
in other products and you orders ships FREE!

Moosejaw Rewards
You earn MJ$10 for every $100 you spend on or at our shops (MJ$2.50 for discounted items). That's like getting 10% back in Rewards!

What are you looking for?
Shopping Cart