Osprey Sirrus 50 Women’s Backpack

  • specifications: 68 x 32 x 35 cm; XS/S: 1.59 kg, 47L; S/M: 1.63 kg, 50L
  • warranty: Lifetime warranty including airline damage
  • width_height: 68x32


The Osprey Sirrus 50 Women’s Backpack has a female specific adjustable fit and supremely sophisticated ventilated harness system making it an ideal pick for overnight treks or hiking or short backpack trips where you expect to be carting your pack.  The pack provides a fully adjustable AirSpeed™ ventilated back system which combines single piece construction of the back panel and hip belt with highly breathable suspended mesh, this allows for increased comfort in warm weather, even with a heavy load. The pack is also cleverly designed for your equipment with sleeping bag compartment, sleep roll straps, hiking pole attachment, ice tool attachment and hydration pouch compatibility.

Key features

  • Female specific fit with sophisticated harness design for optimum ventilation
  • Available in 2 sizes to suit different heights
  • Airspeed wire suspension and Spacermesh harness for load distribution and support
  • Internal hydration pouch, removable sleeping roll straps, ice tool attachment points, stow on the go walking pole loops
  • 12-18kg load range
  • Lifetime warranty including airline damage


Product Specifications

  • Capacity & Weight: 
    • Extra Small/Small: 47L, 1.59kg
    • Small/Medium: 50L, 1.63kg
  • Size Guide:
    • Extra Small/Small: to fit torso 33-43cm
    • Small/Medium: to fit torso 41-51cm
  • Material: Main Section is 210D Nylon Crosshatch, Accents and base are 420HD Nylon Packcloth
  • Harness:
    • Airspeed Suspension: LightWire™ alloy frame creates low profile air space, optimizing pack balance and ventilation.  3D-tensioned breathable mesh back panel ensures supportive fit
    • Spacermesh Harness: Sewn-in spacermesh; mesh-covered ventilated die-cut foam
    • Adjustable sternum strap with whistle
    • Spacermesh sewn in Hip belt: Seamless lumbar to hip belt body wrap, zippered hip belt pockets
  • Packing Structure: 
    • The main compartment is accessed through the top of the pack. Flip back the top pocket to reveal the draw cord and skirt, open that up to pack through the top.  In addition, there is side panel access to the main compartment.
    • Removable top lid with zipped pocket. There is also a mesh pocket on the underside of the lid.
    • Front panel pocket ideal for stashing maps, your phone, snacks etc.
    • Dual front panel zipped vertical pockets
    • Sleeping bag compartment at the base with bellowed divider into the main compartment
    • Internal reservoir sleeve
    • Zipped hip belt pockets
  • External features: 
    • Dual side compression straps
    • Ice tool attachment loop with cord tie-off points
    • Integrated rain cover
    • Adjustable and removable sleeping pad straps
    • Osprey’s unique Stow-on-the-Go™ system allows users to tuck away trekking poles quickly without having to remove their packs


We recommend this bag for:

  • The Osprey Sirrus 50 Women’s Pack is perfect for female travellers who will need to carry their pack for long days or multi-day wear – the lightweight pack, and mesh harness offer superior support and ventilation.  

Keep up to date - Subscribe Today!