Find Your Store
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards

Osprey Packs
Sirrus 44L Backpack

Be the first to review
$138.00 - $230.00
Up to 40% off
Color:Muted Space Blue


Size Chart


Why We Like The Osprey Sirrus 44L Backpack

The largest of the Sirrus packs, the Osprey Sirrus 44L backpack features a highly ventilated back panel and a full set of hiker-friendly features. The Airspeed mesh suspension system maximizes ventilation and includes a ladder adjustment system to adjust the torso length up to four inches. The 44-liter capacity is best for short trips, but it's still long on features with an included rain cover, trekking pole and ice axe attachments, accessory straps for a sleeping pad, and plenty of pockets, including hip-belt pockets to get at small essentials without breaking stride. The Sirrus is a serious pack for a hut-to-hut trek, a supported backpacking trip, or a fast-and-light overnighter.


  • Women-specific backpack for quick overnighters
  • Eco-certified, high-denier fabrics are lightweight yet durable
  • Fixed lid with large main compartment and zippered mesh storage
  • Ventilated shoulder straps and hip belt for added comfort
  • Top access with hidden vertical side zipper for wide access
  • Internal hydration sleeve and external stretch bottle pockets
  • Adjustable sternum strap with built-in rescue whistle
  • Raincover included for extra protection and extra value
  • Item #OSPZ1CV
Responsible Collection
[nylon] bluesign®️ APPROVED, Recycled/Repurposed
[face fabric] 210D recycled nylon, PFC/PFAS-free DWR finish, [accent, bottom] 420D recycled nylon, PFC/PFAS-free DWR finish
44L (2685cu in)
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)
Reservoir Included
top drawcord, hidden vertical side zip
[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
Rain Cover
included, PFC/PFAS-free DWR
Weight Capacity
27.2 x 14.6 x 11.4in
Claimed Weight
3lb 8.3oz
Manufacturer Warranty

What do you think about this product?


Selecting an option will reload the available reviews on the page

Sorry, we don’t currently have any of those types of reviews for this product.