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The Osprey Atmos 50 is the largest backpack in the Atmos series with a volume of 3,050 cubic inches (50 liters). It has 11 compartments, innovative Airspeed suspension, and two hydration ports all packaged in a 2 pound 13 ounce (1.28 kg) backpack.


  • Overview
  • Specifications: Backpack Style, Fabric Description, Sizes, Volume, Weight, Volume to Weight Ratio, Load Carrying Capacity, Carry Load to Pack Weight Performance Ratio, Model Year, MSRP
  • Usable Features and Ease of Use
  • Load Volume Flexibility
  • Pack Load Carrying
  • Durability
  • Value
  • Recommendations for Improvement

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