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Osprey - Sirrus 50 Pack

Availability: Out of stock

Stock #: 495Z-

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As the largest volume in the Sirrus series, the women’s specific Sirrus 50 offers our proven AirSpeed™ ventilated suspension system in a volume perfect for overnight to weeklong backpacking trips. 


  • Osprey’s InsideOut™ compression straps allow you to create tension and easily secure loads in the dual stretch mesh side pockets
  • The integrated, removable raincover provides pack protection in adverse conditions
  • An internal reservoir sleeve is located in the main body of the pack allowing easy loading/unloading of a hydration reservoir
  • The floating top lid can extend to accept oversized loads or can be removed from the back body for weight saving lidless use
  • Sleeping pad straps allow for quick, secure external gear attachment.  They can also be removed to save weight
  • A lower zippered sleeping bag compartment with a drop down divider provides easy access to internal contents and allows you to use your pack with one compartment or two
  • Osprey’s Stow-on-the-Go™ trekking pole attachment is designed to quickly attach and carry trekking poles while wearing a pack
  • The dual ice tool loops and clove hitch style bungee tie-offs provide tool attachment and transport
  • Access to the main compartment is under the top lid.  A drawstring closure located under the top lid provides secure closure of pack



  • Volume: 2868 IN³ / 47 L
  • Dimensions: 22H X 13W X 14D IN
  • Weight: 3.06 LBS


  • Volume: 3051 IN³ / 50 L
  • Dimensions: 24H X 13W X 14D IN
  • Weight: 3.17 LBS

Additional Information

Intended Use Hiking/Backpacking

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