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Details

  • Dual zippered panel access to main compartment
  • Front panel vertical zip pocket; front panel storage pocket; front panel zip stash pocket; large top panel zip stash pocket; side stretch-mesh pockets; zip hipbelt pockets
  • Zippered sleeping bag compartment with bellowed divider; removable sleeping pad straps
  • Stow-on-the-Go trekking pole attachment; ice tool loop with bungee tie-off
  • Dual side compression straps
  • Integrated raincover
  • Internal hydration reservoir sleeve (reservoir sold separately)

Imported.

View all Osprey Daypacks

REI membership

Specs

Best Use Hiking
Bag Style Backpack
Frame Type Internal Frame
Gear Capacity (L)
M/L
34 liters
S/M
32 liters
Gear Capacity (cu. in.)
M/L
2,075 cubic inches
S/M
1,953 cubic inches
Weight
M/L
3 lbs. 1.3 oz.
S/M
2 lbs. 15.2 oz.
Adjustable Torso Yes
Fits Torso
M/L
19 - 23 inches
S/M
16 - 20 inches
Fits Waist/Hips
M/L
28 - 50 inches
S/M
26 - 45 inches
Material(s) Nylon
Frame Material LightWire alloy frame
Number of Stays 1
Suspended Mesh Back Panel Yes
Pack Access Panel/bottom
Number of Exterior Pockets 7
Hipbelt Yes
Sleeping Bag Compartment Yes
Raincover Included Yes
Hydration Compatible Yes
Dimensions 24 x 11 x 12 inches
Gender Unisex
Rated 1 out of 5 by from Beatifull product, but not good enought ! The backpack is just beautiful and it seems to be of excellent quality. But after testing it for only 5 days (round trip from home to work, 2x a day), the first problem showed up. Osprey used a material known to be of poor quality and durability to attach the straps to hipbelt pockets. I would love to replace this one by another of the same model but without defect, but since the material is is not good, certainly I will have the same problem again and again, so the only option I have is to exchange it for a different brand and/or model, even though it isn't as beautiful as the Osprey Stratus 34 is.
Date published: 2017-03-23
Rated 2 out of 5 by from Would not buy Again Stratos 34 has a lot of flaws and I regret selecting the Stratos 34. The Zulu 30 has much better designed pockets for stowing gear and small items like keys, wallet, and identification. I selected the Stratos because it is shorter and it seemed to fit better as I am 5' 7", but it is so poorly organized that I am thinking of trying to sell it and buy the Zulu 30. Also the shorter Stratos means you cannot fit a 3 liter water pouch in the bag. Even a 2 liter pouch will take up so much space that the top pocket is rendered useless. Another problem with the water pouch pocket on the Stratos is that it will not turn inside out to dry and it does get wet and moldy from condensation. The medium size Stratos 34 is actually 32 liters and it does not have the outside pocket so it carries less and it is not as convenient as the Zulu 30. The system for stowing hiking poles is better on the Stratos.
Date published: 2017-04-03
Rated 1 out of 5 by from Disappointed The backpack is too heavy for its capacity and the materials like the straps feel cheaply made. It is also uncomfortable at the shoulder straps and also the hip belt. I would not recommend this product.
Date published: 2017-03-28
Rated 5 out of 5 by from This is an excellent companion while making the bike commute Twenty bike commute
Date published: 2017-04-03
Rated 5 out of 5 by from Fits enough climbing gear for a day trip. My main goal with buying this was a bag to carry all my current climbing gear and also be able to do some basic overnight trips or lightweight summer backpacking. I compared this to the Gregory Zulu 30 and Dueter ACT Trail 30, ended up going with the Osprey due to better in-store comfort, brand loyalty, and I was able to get one for cheaper than the other two. So far I've had the pack a week so my review is mainly going to be more of an initial thought. What it fits: 1x Black Diamond Solution Harness with an ATC+Carabiner, Grigri 2+Carabiner 1x Mammut multipitch chalk bag 2x climbing shoes (Scarpa origin and force v) 6x Petzl quickdraws various anchoring gear (2x 120cm slings, 2x 30cm dyneema slings, 2x 6m prusik loops, 1x 7m cordelette, 1x metolius pas 22) various personal things(camera, sunblock, snacks, etc..) With all of this loaded, I do have some extra space for small things to pack in/down the sides but not much else, but I also don't have it packed the most efficiently, I just threw everything in to see if it would fit and it does. Currently I keep my harness/chalk bag on top, shoes underneath that, and everything else under that since I mostly climb at the gym. In terms of rope, I don't have one to test with (my friend bought a rope already, I'll get one... eventually), but I imagine you could either fit it to the top and use the top compression straps to hold it in place, or use the sleeping pad straps to carry it on the bottom, though this would potentially get your rope dirty if you set your pack down a lot. I haven't tried loading it with my 2.5L platypus hydration along with the rest of the gear yet, but I have no doubt it'd fit once I reorganize it a little, currently everything is just shoved in there, a testament to the amount of space you get. My thoughts: Fits me great, very comfortable for the short times I've used it, I quite like the outside pockets, the hip pockets will fit my LG V20 with some coercion, the back panel is supremely comfortable and airy, perfect for the hot Californian summers. Biggest flaw currently is that the bottom sleeping pad panel is not removable, though you can unhook it and let the main compartment take up that space. Still disappointed I can't access my pack from the bottom, that was a great feature in my Aether. I've yet to try this pack while Hiking and will update once I get some miles in.
Date published: 2017-05-30
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Would this pack be small enough to qualify as a carry on bag on an airplane?

Asked by: Stephen
Yes! I just filled mine up and measured it, and it fits even Ryan Air's insanely small standards. Just make sure you're not over the weight limit. 
Answered by: noname
Date published: 2017-02-20

Which size S/M or M/L pack best fit a 5'10'' man that weighs 175 lbs? Torso is 20'' and waist/hips is 39.5''. I'm leaning more towards the M/L for its capacity (34L vs 32L). Any recommendations would be appreciated!

Asked by: Corey
​We recommend ordering the M/L pack based your torso and waist measurements.
Answered by: REIservice
Date published: 2017-03-06

Torso length Stratos 34 and 36 M/L is 19-23, same for each. The dimension Ht. for Stratos 34 = 24" , Ht for Statos 36 = 27". A 3 " difference. What is actual Ht. of each pack from the bottom of pack to load lifter attachment? Please actual measures.

Asked by: Legnef
Both packs in size M/L measure approximately 23" from the bottom of the pack to the load lifter attachment.
Answered by: REIservice
Date published: 2017-05-22

How many Denier and what type in the fabric ?

Asked by: Donnie
The main body fabric is 210 denier nylon crosshatch. The bottom section and accents panels are constructed with 420 denier nylon packcloth.
Answered by: REIservice
Date published: 2017-03-09

Does this pack have a hydration sleeve and ports?

Asked by: Mike
​Yes, this pack has a hydration sleeve and a hose port.
Answered by: REIservice
Date published: 2017-03-14

What size would you suggest for a women, 5'10", weight 140, waist 31, torso 20?

Asked by: Debg
You will fit better in the M/L.
Answered by: REIservice
Date published: 2017-05-11

How is this still 34 L when the dimensions are smaller then last years bag? M/L bag. 2016 = 24x13x13 2017 = 24x11x12 And why is it a half pound heavier?

Asked by: Oceanbluekj
​Because backpacks are not perfectly rectangular, it is entirely possible that the dimensions could be smaller and it still holds the same volume due to the contours of the pack. This pack was updated for 2017 with an adjustable torso length and improved fit, and the updates do result in some extra weight in the pack compared to the 2016 year model.
Answered by: REIservice
Date published: 2017-07-17

Will this pack fit the Osprey 3 liter (100 oz) reservoir? If not will the Stratos 36?

Asked by: MeBaby
Both the Stratos 34 and the Stratos 36 can accommodate a 3 liter reservoir.
Answered by: REIservice
Date published: 2017-05-19
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Back to top

Please select a color/size.

Reviews

Rated 1 out of 5 by from Beatifull product, but not good enought ! The backpack is just beautiful and it seems to be of excellent quality. But after testing it for only 5 days (round trip from home to work, 2x a day), the first problem showed up. Osprey used a material known to be of poor quality and durability to attach the straps to hipbelt pockets. I would love to replace this one by another of the same model but without defect, but since the material is is not good, certainly I will have the same problem again and again, so the only option I have is to exchange it for a different brand and/or model, even though it isn't as beautiful as the Osprey Stratus 34 is.
Date published: 2017-03-23
Rated 2 out of 5 by from Would not buy Again Stratos 34 has a lot of flaws and I regret selecting the Stratos 34. The Zulu 30 has much better designed pockets for stowing gear and small items like keys, wallet, and identification. I selected the Stratos because it is shorter and it seemed to fit better as I am 5' 7", but it is so poorly organized that I am thinking of trying to sell it and buy the Zulu 30. Also the shorter Stratos means you cannot fit a 3 liter water pouch in the bag. Even a 2 liter pouch will take up so much space that the top pocket is rendered useless. Another problem with the water pouch pocket on the Stratos is that it will not turn inside out to dry and it does get wet and moldy from condensation. The medium size Stratos 34 is actually 32 liters and it does not have the outside pocket so it carries less and it is not as convenient as the Zulu 30. The system for stowing hiking poles is better on the Stratos.
Date published: 2017-04-03
Rated 1 out of 5 by from Disappointed The backpack is too heavy for its capacity and the materials like the straps feel cheaply made. It is also uncomfortable at the shoulder straps and also the hip belt. I would not recommend this product.
Date published: 2017-03-28
Rated 5 out of 5 by from This is an excellent companion while making the bike commute Twenty bike commute
Date published: 2017-04-03
Rated 5 out of 5 by from Fits enough climbing gear for a day trip. My main goal with buying this was a bag to carry all my current climbing gear and also be able to do some basic overnight trips or lightweight summer backpacking. I compared this to the Gregory Zulu 30 and Dueter ACT Trail 30, ended up going with the Osprey due to better in-store comfort, brand loyalty, and I was able to get one for cheaper than the other two. So far I've had the pack a week so my review is mainly going to be more of an initial thought. What it fits: 1x Black Diamond Solution Harness with an ATC+Carabiner, Grigri 2+Carabiner 1x Mammut multipitch chalk bag 2x climbing shoes (Scarpa origin and force v) 6x Petzl quickdraws various anchoring gear (2x 120cm slings, 2x 30cm dyneema slings, 2x 6m prusik loops, 1x 7m cordelette, 1x metolius pas 22) various personal things(camera, sunblock, snacks, etc..) With all of this loaded, I do have some extra space for small things to pack in/down the sides but not much else, but I also don't have it packed the most efficiently, I just threw everything in to see if it would fit and it does. Currently I keep my harness/chalk bag on top, shoes underneath that, and everything else under that since I mostly climb at the gym. In terms of rope, I don't have one to test with (my friend bought a rope already, I'll get one... eventually), but I imagine you could either fit it to the top and use the top compression straps to hold it in place, or use the sleeping pad straps to carry it on the bottom, though this would potentially get your rope dirty if you set your pack down a lot. I haven't tried loading it with my 2.5L platypus hydration along with the rest of the gear yet, but I have no doubt it'd fit once I reorganize it a little, currently everything is just shoved in there, a testament to the amount of space you get. My thoughts: Fits me great, very comfortable for the short times I've used it, I quite like the outside pockets, the hip pockets will fit my LG V20 with some coercion, the back panel is supremely comfortable and airy, perfect for the hot Californian summers. Biggest flaw currently is that the bottom sleeping pad panel is not removable, though you can unhook it and let the main compartment take up that space. Still disappointed I can't access my pack from the bottom, that was a great feature in my Aether. I've yet to try this pack while Hiking and will update once I get some miles in.
Date published: 2017-05-30
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Questions & Answers

Would this pack be small enough to qualify as a carry on bag on an airplane?

Asked by: Stephen
Yes! I just filled mine up and measured it, and it fits even Ryan Air's insanely small standards. Just make sure you're not over the weight limit. 
Answered by: noname
Date published: 2017-02-20

Which size S/M or M/L pack best fit a 5'10'' man that weighs 175 lbs? Torso is 20'' and waist/hips is 39.5''. I'm leaning more towards the M/L for its capacity (34L vs 32L). Any recommendations would be appreciated!

Asked by: Corey
​We recommend ordering the M/L pack based your torso and waist measurements.
Answered by: REIservice
Date published: 2017-03-06

Torso length Stratos 34 and 36 M/L is 19-23, same for each. The dimension Ht. for Stratos 34 = 24" , Ht for Statos 36 = 27". A 3 " difference. What is actual Ht. of each pack from the bottom of pack to load lifter attachment? Please actual measures.

Asked by: Legnef
Both packs in size M/L measure approximately 23" from the bottom of the pack to the load lifter attachment.
Answered by: REIservice
Date published: 2017-05-22

How many Denier and what type in the fabric ?

Asked by: Donnie
The main body fabric is 210 denier nylon crosshatch. The bottom section and accents panels are constructed with 420 denier nylon packcloth.
Answered by: REIservice
Date published: 2017-03-09

Does this pack have a hydration sleeve and ports?

Asked by: Mike
​Yes, this pack has a hydration sleeve and a hose port.
Answered by: REIservice
Date published: 2017-03-14

What size would you suggest for a women, 5'10", weight 140, waist 31, torso 20?

Asked by: Debg
You will fit better in the M/L.
Answered by: REIservice
Date published: 2017-05-11

How is this still 34 L when the dimensions are smaller then last years bag? M/L bag. 2016 = 24x13x13 2017 = 24x11x12 And why is it a half pound heavier?

Asked by: Oceanbluekj
​Because backpacks are not perfectly rectangular, it is entirely possible that the dimensions could be smaller and it still holds the same volume due to the contours of the pack. This pack was updated for 2017 with an adjustable torso length and improved fit, and the updates do result in some extra weight in the pack compared to the 2016 year model.
Answered by: REIservice
Date published: 2017-07-17

Will this pack fit the Osprey 3 liter (100 oz) reservoir? If not will the Stratos 36?

Asked by: MeBaby
Both the Stratos 34 and the Stratos 36 can accommodate a 3 liter reservoir.
Answered by: REIservice
Date published: 2017-05-19
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