Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — front view
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — angle view 2
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — back view
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view 2
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view 3
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view 4
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — lifestyle
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — lifestyle 2
Osprey Sirrus 36 Hiking Backpack 36L in Purple Dusk — front view
Osprey Sirrus 36 Hiking Backpack 36L in Purple Dusk — angle view 2
Osprey Sirrus 36 Hiking Backpack 36L in Purple Dusk — back view
Osprey Sirrus 36 Hiking Backpack 36L in Sevres Blue — front view
Osprey Sirrus 36 Hiking Backpack 36L in Sevres Blue — angle view 2
Osprey Sirrus 36 Hiking Backpack 36L in Sevres Blue — back view
Roll over image to zoom in Click on image to zoom
Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — front viewOsprey Sirrus 36 Hiking Backpack 36L in Medium Gray — angle view 2Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — back viewOsprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail viewOsprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view 2Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view 3Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — detail view 4Osprey Sirrus 36 Hiking Backpack 36L in Medium Gray — lifestyleOsprey Sirrus 36 Hiking Backpack 36L in Medium Gray — lifestyle 2Osprey Sirrus 36 Hiking Backpack 36L in Purple Dusk — front viewOsprey Sirrus 36 Hiking Backpack 36L in Purple Dusk — angle view 2Osprey Sirrus 36 Hiking Backpack 36L in Purple Dusk — back viewOsprey Sirrus 36 Hiking Backpack 36L in Sevres Blue — front viewOsprey Sirrus 36 Hiking Backpack 36L in Sevres Blue — angle view 2Osprey Sirrus 36 Hiking Backpack 36L in Sevres Blue — back view

Osprey Sirrus 36 Hiking Backpack 36L

Online Only
OspreySKU: 810165747401
Color Medium Gray
Price
$240.00
Stock
Re-stocking soon
22×14 in

Size & fit

Packs for about 3–4 days

  • 25.6 × 13.4 × 13.0 in (exterior)
  • 36 L capacity
  • Larger than 22 × 14 × 9 in when fully packed: check your airline’s limit

Shown to scale next to a 5′9″ person. Airline limits vary. Check your airline’s size limits

Ships from our fulfillment team We’ll email tracking as soon as it ships

Osprey All Mighty Guarantee Repairs any damage or defect, for any reason · Provided by Osprey · Terms

Description

The top-loading member of the Sirrus line, and the one that stretches past a day. A cinch-closed main compartment under a fixed lid takes an awkward load without complaint, and a collapsible lower compartment gives you a second, separate space when you need it and disappears when you don't.

Thirty-six litres is enough for a light overnight in summer or a very full day in shoulder season. AirSpeed suspension, ErgoPull hipbelt, raincover in the base. Three colourways, one size.

Online exclusive, shipped direct.

  • A place for everything: Spacious main compartment, vertical-zip front stash pocket, large hipbelt pockets and Stow-on-the-Go trekking pole attachment
  • AirSpeed suspension: A LightWire perimeter frame adds structure and tensions a mesh trampoline backpanel for carrying comfort and cooling airflow
  • Raincover included: A waterproof raincover stores in a bottom panel compartment
  • bluesign PRODUCT: Materials and components have been selected against third-party environmental and social criteria during production
  • Top-loading main compartment with cinch closure and top lid
  • Fixed top lid with large compartment and underlid zippered pocket with key clip
  • Zippered bottom access to separate, collapsible compartment
  • Removable sleeping pad/accessory straps
  • Included raincover stores in pocket at base of pack
  • Large, vertical-zip front stash pocket is perfect for extra layers
  • Two zippered hipbelt pockets keep snacks, phone or other small items handy
  • Stretch side pockets carry water bottles or other quick-access items
  • Internal sleeve with hose routing port and Hydraclip for easily hanging hydration reservoir
  • Upper and lower side compression straps stabilize load
  • Adjustable sternum strap with safety whistle
  • Stow-on-the-Go trekking pole attachment
  • Ice tool loop with bungee tie-off
  • Front panel lash loops for attaching extra gear
  • AirSpeed suspension: Supportive mesh trampoline backpanel provides ventilation; a LightWire peripheral frame tensions the mesh and creates load support structure
  • Harness: Padded, full-yoke harness with an edgeless design, die-cut airflow channels and breathable spacermesh contact surfaces; load lifters balance the upper pack
  • Hipbelt: Mesh-covered, padded hipbelt integrates into the backpanel; a crossbody ErgoPull system pulls it snug for load transfer
  • Volume: 36 L
  • Main fabric: bluesign APPROVED, 100% recycled 100D x 210D nylon with honeycomb ripstop, DWR treatment made without PFAS
  • Lining: bluesign APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS
  • Bottom: bluesign APPROVED, 100% recycled 420D nylon, DWR treatment made without PFAS
  • Backpanel, harness and hipbelt mesh: bluesign APPROVED, 100% recycled polyester

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