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Osprey Sirrus 36 Muted Space Blue - Women's

item # 10004061


When day hikes stretch out into more committing endeavors, the Sirrus 36 women's hiking pack is the perfect in-mid-size option. Its top-loading design, topped by a fixed top lid, helps make packing a breeze. Plus, with its highly ventilated AirSpeed® suspensions system and just enough volume to empower your bigger pursuits, it inspires long days and lightweight nights exploring our more rugged trails, rain or shine. Made with 100% recycled materials.


  • AIRSPEED® VENTILATION: Injection-molded ladder adjustment system provides 4" of torso adjustability; O/S per gender design delivers great fit and allows for quick, easy adjustment; Taller, wider 4 mm powder coated LightWire frame enhances fit range
  • COMPREHENSIVE FIT: Taller, wider frame geometry combines with tailored adjustment system to extend fit range.
  • Included raincover made with PFC/PFAS-free DWR and bluesign® approved materials
  • Zippered front stash pocket
  • Dual zippered hipbelt pockets
  • Side stretch mesh bottle pockets
  • Internal hydration sleeve with hose port in backpanel
  • Stow-on-the-Go trekking pole attachment with new soft-touch tubes
  • Dual side compression straps
  • Single ice axe loop with bungee tie-offs
  • Front panel lash loops for attaching extra gear
  • Top loading design with a secure drawcord closure
  • Fixed top lid with large main compartment and underlid zippered mesh pocket with key clip
  • Hidden vertical side zip access into main compartment for quick access to contents
  • Zippered access lower compartment with a floating liner keeps contents organized and accessible
  • Accessory straps on lower front panel are perfect for pads or blankets


  • AirSpeed® Suspension: 4 mm LightWire peripheral frame effectively transfers the load from harness to hipbelt
  • HARNESS: Highly ventilated die-cut EVA foam is wrapped in wide spacer mesh for outstanding comfort in all weather conditions; Adjustable sternum strap with rescue whistle
  • AirSpeed® Backpanel: 3D-tensioned breathable mesh backpanel ensures supportive fit; New design increases ventilated area up to 40% over our previous design; New yoke design ensures consistent fit at any setting
  • Hipbelt: Ventilated die-cut EVA foam is covered in wide spacer mesh for outstanding comfort in all weather conditions; Large zippered pockets provide secure access to small essentials on the trail; ErgoPull closure provides leverage to ensure snug fit and optimal load transfer
  • Materials:
  • Main: bluesign® approved 210D recycled honey comb nylon, PFC/PFAS-free DWR
  • Accent/Bottom: bluesign® approved 420D recycled nylon, PFC/PFAS-free DWR
  • Weight:3.155 lbs.
  • Dimensions: 26.77h x 14.57w x 10.63d in.
  • Volume: 2197 in3 / 36 L
  • Load Range: 15-30 lbs

WARNING: This product can expose you to chemicals including dimethylformamide, which is known to the State of California to cause cancer. For more information, go to