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Osprey Packs Stratos 50L Backpack


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Stratos 50L Backpack

Between a camp stove that didn't want to work above treeline and a pack of coyotes that kept you up all night, your first weekend trip with Osprey's Stratos 50 Backpack didn't go exactly as planned, but it was pretty amazing in its own way. The adjustable back panel let you dial in the perfect fit for your torso length, and the pack's AirSpeed Suspension really kept your back cool and sweat-free as you schlepped gear under the midday sun. And when that unexpected rain storm caught you hiking across an open meadow, the integrated rain cover prevented it from turning your dehydrated dinners into a soggy mess.

  • Osprey's biggest Stratos backpack built for weekend treks
  • AirSpeed Suspension assures ventilation, support, and comfort
  • Traditional top loader with secondary side access
  • Zippered sleeping bag compartment and removable sleeping pad straps
  • Integrated rain cover protects camping gear from wet weather
  • Removable top lid doubles as a daypack
  • Stow-on-the-Go trekking pole and ice tool attachments
  • Pockets designed for hydration reservoirs, valuables, and electronics
  • Item #OSP007R

[main] 210D nylon [accent, bottom] nylon 420HD
47 - 50L (2868 - 3051cu in)
AirSpeed (3D-suspended mesh), LightWire (alloy frame)
Shoulder Straps
padded spacermesh, adjustable, sternum strap
Waist Belt
padded spacermesh, ErgoFit adjustable, seamless lumbar support
Hydration Compatible
internal reservoir sleeve
top, side
2 stretch mesh sides, 1 front panel, 2 zippered waist belt, 2 zippered top, 1 zippered stash
Ice Axe Carry
loop with bungee tie-off
Trekking Pole Carry
Sleeping Bag Compartment
zippered bottom
Rain Cover
Detachable Daypack
removable top lid
dual side straps
Weight Capacity
25 - 40lb
28 x 14 x 15in
Claimed Weight
3lb 10.9oz
Recommended Use
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 5

Great Pack

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

So far I’ve only been able to use this pack on one trip but it performed flawlessly. The size is great for 2-5 day trips depending on how you pack. I like the built in rain fly and large top access opening which uses a draw string to open and close. The sleeping bag compartment is functional for dirty clothes, bear canister, or shoes depending on your adventure. Just the right amount of stash pockets and the side mesh ones hold my travel mug & Nalgene no problem.

>Rating: 4

Rugged Mid-Tier Pack

I've used it several times

First impression I got from this pack is that it's going to hold up to being a crag bag, which is what I got it for. It carries 30lbs well and close despite the ventilated back. I do wish the tensioned mesh was a little tighter, as it does collapse with a full load in the pack. The shoulder pads are plenty beefy enough, and I haven't had any shoulder or neck pain after lugging this around with 30lbs for a few miles. I also especially like that the sleeping bag compartment is self - contained while also being collapsible. So if your gorp or whatever busts open in your pack, or you get some sand in there from your flops, it won't shake down into your sleeping bag. Many bags just have a little flap here that you snap into place to keep the sleeping bag down, but this pack's is a whole enclosed compartment. Really thoughtful from Osprey, although I'm sure ounce-counters will hate it. The outer material is nice and thick, and seems that it will stand up to being smacked on rocks and dragged a bit at the base of a crag. Also big points for the stuff-it pocket on the outside also having a zipper pocket integrated into it. Downsides are that the mesh water bottle pockets have two openings each, one on top like most standard pockets, and one facing the front, so you can grab it on the go. Useless to me as you can't put the bottle back in that way without putting the pack down, in which case why wouldn't you just use the top opening. Because of this extra opening, the mesh pockets won't hold much other loose stuff. Minor gripe though, and it won't affect my use, and I give credit to Osprey for trying it out. Also, the hip pockets are pretty small, and I would have preferred the hydration bladder pocket to be external, as it takes up some of the 50L capacity when inside the pack as it is. Overall, this is a great pack that many might overlook, but it really perfectly fills the middle ground between the super light Talon 44 and the beefy Atmos 50. Highly recommended.

>Rating: 4

Recently purchased and hiked.

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

This pack is extremely comfortable. Hiked in the heat this past weekend and found ventilation on straps and back harness to be excellent. Excellent job of transferring load to hips. No problems with front of hip belt strap "biting" me. Two reasons this pack was not rated 5. First: hip belt pockets are very small. Second: lighter materials and smaller straps could make this significantly lighter. Overall: look forward to using this pack on my monthly excursions into the woods. ...


Osprey Stratos 50 product tour

Check out the updated Osprey Stratos 50 men's pack! If you are looking for the women's version, be sure to look at the Osprey Sirrus 50. Enjoy! Leta Osprey Rep