Osprey Stratos 24 vs 34 vs 36

Last updated: December 6, 2024

Stratos 36 would be the most versatile pick. 

As most of you know, I've been sharing helpful guides to Osprey backpacks for more than 2 years now (find full post list is at the bottom). 

I thought that putting together a guide around these Stratos configurations would be helpful for most of you. Because, the 50 L version of Stratos took place in my top Osprey backpack picks for backpacking

And I recommended these smaller adaptations as alternatives for some specific intended uses.

 

Overview

Let's take a quick look at them before we dig any deeper. 

  • Stratos 24: Front loading, no sleeping bag compartment, and offers 5 exterior pockets. 
    • Great for day hiking, but certainly nothing more than that. 
  • Stratos 34: Front loading, sleeping bag compartment (which also offers an additional access to the main compartment), and offers 7 exterior pockets. 
    • This would probably be my least recommended Stratos.
    • Stuck somewhere in between Osprey's line-up and ended up lacking a true identity. It doesn't even have a women's counterpart! 
  • Stratos 36: Top loading AND side access, sleeping bag compartment (which also offers an additional access to the main compartment), and offers 7 exterior pockets. 
    • Top loading is a great advantage out in the nature as it offers easier access to the main compartment when the pack is sitting upright.
    • 36 liters of volume, extra accesses and sleeping bag compartments together make it a good option for overnight hiking trips.
    • Versatility wise, no doubt that it's the top pick. Unless you'll be day hiking only, then I'd recommend this over the 24 as well.
  • Always opt for larger volume when in doubt!

Why? 

Because having the extra space but not needing it is always better than needing the extra space but not having it! 

Let's get to their bolts and nuts. 

Front or Top Loading?

I'd base my decision primarily on this difference. My approach is pretty simple here: 

  • Front loading (Stratos 24 & 34) would make things easier if you have an elevated, wide platform (think bed, desk, etc) to lay your backpack on and open it like a suitcase. 
    • I mostly recommend this for traveling folks. 
  • Top loading (Stratos 36) would come more useful during activities where you need access to the main compartment on the go. 
    • You can easily lean your pack against something (think a wall, tree, or even your leg) and voila. You just gained the access to your entire equipment. 

I mean... I did say the front loading Stratos 24 is great for day hiking... and overall, that is true...

  • Related Data Set: Osprey's All Backpacking Backpacks
  • Bold are my top picks for each group (based on trip length).
  • If you tend to pack more or less than the average person, then shift the trip length values accordingly.
  • If you're planning to get either one of them, I'd also highly recommend you to check out Osprey's own PackFinder tool as well.

To see the full table and my top picks, visit my post Best Osprey Hiking Backpacks

Rotate your phone sideways for a better table display.

 

Comfort

Features & Organization

Weight (M Size)


Trip Length: 7+ nights [>90 L]

10/10

10/10

5.78 lbs

Cell

Trip Length: 5-7 nights [75 - 90 L]

10/10

10/10

5.61 lbs

Aether AG 85 (Men's)

Ariel AG 75 (Women's)

[PDF Manual]

[Read my review]

8/10

9/10

5.37 lbs

Cell

Trip Length: 2-5 nights [55 - 75 L]

Sweet spot. Versatile picks.

Atmos AG 65 (Men's)

Aura AG 65 (Women's)

[PDF Manual]

[Read my review]

10/10

8/10

4.56 lbs

9/10

10/10

5.56 lbs

Volt 75 (Men's)

Viva 65 (Women's)

[PDF Manual]

8/10

6/10

4.3 lbs

Aether PRO 70 (Men's)

Ariel PRO 65 (Women's)

[PDF Manual]

[Read my review]

10/10

4/10

3.94 lbs

Aether AG 70 (Men's)

Ariel AG 65 (Women's)

[PDF Manual]

[Read my review]

9/10

9/10

5.21 lbs

Aether AG 60 (Men's)

Ariel AG 55 (Women's)

[PDF Manual]

[Read my review]

9/10

9/10

5.15 lbs

8/10

6/10

4.3 lbs

Rook 65 (Men's)

Renn 65 (Women's)

[PDF Manual]

6/10

5/10

3.52 lbs

Levity 60 (Men's)

Lumina 60 (Women's)

[PDF Manual]

8/10

4/10

1.95 lbs

7/10

4/10

2.58 lbs

Cell

Trip Length: 1-3 nights [45 - 55 L]

Atmos AG 50 (Men's)

Aura AG 50 (Women's)

[PDF Manual]

[Read my review]

9/10

7/10

4.21 lbs

8/10

8/10

3.59 lbs

Stratos 50 (Men's)

Sirrus 50 (Women's)

[PDF Manual]

[Read my review]

8/10

8/10

3.68 lbs

Levity 45 (Men's)

Lumina 45 (Women's)

[PDF Manual]

8/10

4/10

1.85 lbs

7/10

4/10

2.57 lbs

Rook 50 (Men's)

Renn 50 (Women's)

[PDF Manual]

6/10

6/10

3.49 lbs

8/10

6/10

4.02 lbs

Cell

Trip Length: 0-1 nights [<45 L]

8/10

8/10

3.40 lbs

8/10

8/10

3.30 lbs

8/10

6/10

2.44 lbs

9/10

5/10

2.02 lbs

8/10

4/10

2.48 lbs

If you're interested in getting a travel backpack, check out my Osprey's top travel backpacks post

But I guess I'd still consider a top loading alternative such as osprey's Talon 33. Comes with less bells and whistles, but is more comfortable and offers top loading. 

I also compared the Stratos line to Talon line here in detail

Comfort

These are all Stratos (duh), so their suspension and ventilation systems are identical. I'd rate their comfort level at 8/10, coming right after Xenith/Xena, Atmos/Aura and Aether/Ariel Series. 

Intended Use

Stratos 24. 

Unless you're a true ultralighter, I wouldn't recommend 24 liters for overnight camping. Not at all. 24 liters is optimal for day hiking, but is off the table for anything more than that. 

Having said that, Stratos 36 isn't huge by any means. 

It's slightly larger than a carry on sized pack (see the introduction image). But at that level of cost, you obtain a larger advantage in terms of versatility. 

Conclusion

You can get the Stratos 24 and be perfectly fine if you'll be day hiking only. 

However, if extra size isn't a concern for you, than I'd recommend you the Stratos 36

Here's a good video review of the 36: 

About the Author Canberk K.


Hey, what's up? Canberk here. Arc'teryx addict, gym rat, and Tame Impala fan.