Osprey Atmos AG 50L

Hugs your back and hips so you can focus on the hike rather than what you're carrying.



Technical Details


[main] 100D x 630D nylon dobby [accent] 210D high tenacity nylon [bottom] 420HD nylon packcloth


Anti-Gravity suspended mesh, LightWire tensioned frame, ExoForm wrap upper


2 side, 2 zippered top, 2 zippered waist belt, 1 front mesh

Max. Load Weight

40 lbs.


  • Ultra-comfortable AG suspension system
  • Well-organized pockets
  • Fully-adjustable frame
  • Exceptional ventilation


  • Not as comfortable with loads exceeding 40 lbs.
  • Minimum hip-belt waist is 29 in.

Why We Like It

A backpack that feels more like it's carrying you – rather than you carrying it. Osprey's Anti-Gravity (AG) suspension system is unlike anything you've ever experienced. The unique, ventilated design integrates the backpanel with the hip-belt to distributes the weight of the pack much more evenly and effectively. Also, the backpanel and hip-belt are fully-adjustable so you can dial-in the perfect fit.

The Atmos AG is incredibly well-organized, with a host of pockets, lash points, and gear loops. The main draw-string compartment is complemented by an internal hydration sleeve and a removable divider for the bottom sleeping bag compartment. The brain (top-lid) of the pack features 2 zippered pockets and can be removed for shorter adventures. There are 2 mesh water bottle holders, and a very large mesh stuff-it pocket along the front of the pack.

This pack excels in warmer weather with the Anti-Gravity system's unprecedented ventilation. The only warning I have is to limit your load to under 40 lbs. for the best comfort. If you need to carry more weight, Osprey also makes a 65L version.

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