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Osprey Packs
Sirrus 44L Backpack

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$250.00
Color:Medium Gray

Size:

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Quantity

Only 2 In stock

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Ventilated comfort and trail performance with the Sirrus 44L Backpack

What Our Gearhead® Experts Are Saying:


“The Sirrus 44 hits that perfect balance between lightweight and capable. The AirSpeed suspension is unmatched for airflow and comfort on steep climbs, and the torso adjustment makes it fit just right. I use it for quick overnights or hut trips where I want space but not bulk.”


From fast-paced overnights to hut-to-hut treks, the Osprey Sirrus 44L Backpack delivers the perfect mix of breathable comfort and smart organization. Designed specifically for women, this pack’s adjustable AirSpeed™ suspension keeps air flowing while supporting up to 30 pounds with ease, so we can focus on the trail—not the load.


The 44-liter capacity offers plenty of space for layers, food, and camping gear, with both top and side access points for easy packing. The fixed lid design provides extra storage and protection, while the Stow-on-the-Go trekking pole system lets us transition quickly between climbs and descents. An integrated rain cover and durable, recycled nylon construction ensure we’re ready for any weather that rolls in. Whether it’s a quick overnight or a multi-day mission, the Sirrus 44L combines durability, adjustability, and performance for any adventure.


Details

  • 44L women’s backpack built for fast-and-light overnights
  • AirSpeed™ suspension system enhances ventilation and comfort
  • 4in torso length adjustment for a custom women’s-specific fit
  • Top and side access points simplify gear organization
  • Stow-on-the-Go trekking pole and ice axe carry systems
  • Includes rain cover with PFAS-free DWR for wet-weather protection
  • Sleeping bag compartment with floating divider for easy packing
  • Constructed from durable, recycled, bluesign®-approved nylon
  • Item #OSPZ1RS
Responsible Collection
[nylon] bluesign®️ APPROVED, Recycled/Repurposed
Material
[face fabric] 210D recycled nylon, PFC/PFAS-free DWR finish, [accent, bottom] 420D recycled nylon, PFC/PFAS-free DWR finish
Volume
44L (2685cu in)
Support/Suspension
adjustable AirSpeed suspension system, 4mm powder-coated LightWire frame, AirSpeed suspension backpanel
Shoulder Straps
die-cut EVA foam, spacer mesh, adjustable sternum strap (whistle buckle)
Waist Belt
die-cut EVA foam, spacer mesh, ErgoPull closure
Hydration Compatible
internal bladder sleeve (with backpanel hose port)
Access
top
Pockets
[external] 1 zippered front stash, 1 zippered side, 2 side stretch mesh water bottle, 2 zippered lid (one with key clip), 2 zippered hipbelt, [internal] underlid zippered mesh with key clip
Gear Loops
front panel lash loops, bottom accessory straps
Ice Axe Carry
1 ice axe loop (with bungee tie-off)
Trekking Pole Carry
Stow-on-the-Go attachment
Sleeping Bag Compartment
zippered bottom access with floating divider
Compression
dual-side
Rain Cover
included, PFC/PFAS-free DWR
Dimensions
27.2 x 14.6 x 11.4in
Claimed Weight
3lb 8.3oz
Activity
backpacking
Manufacturer Warranty
limited lifetime
Two hikers wearing bacpacks looking out over mountain valley view with Osprey bird logo overlay.

Built For The Long Haul

Osprey Packs focuses on one thing: packs that fit just right, carry comfortably, and hold up to years of use. Osprey stands for gear you can trust enough to forget about until the adventure’s done.

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