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The Osprey Women’s Sirrus 36 Pack is a small pack for day hikes or overnights. Seriously, just pack the essentials and get yourself onto the trail. Some food, a shelter and a sleeping bag. The clothes on your back will do, but maybe pack a rain shell just in case. It’ll all rest easy on your back, with AirSpeed™ suspension that doesn’t skimp on ventilation. When the rain starts to fall, the integrated raincover is at the ready.
Products on Sale are Discontinued Styles or Colors.

FEATURES of the Osprey Women’s Sirrus 36 Pack
- Dual side compression straps
- Stow-on-the-Go trekking pole attachment
- Dual side stretch mesh pockets
- Front panel storage pocket
- Ice tool loop with bungee tie-off
- Integrated raincover
- Zippered hipbelt pockets
- Internal hydration reservoir sleeve
- Top loader access to main compartment
- Under top-lid zippered mesh pocket
- Fixed top-lid with zippered stash pocket
- Side panel zip access to main compartment
- Front panel vertical center zippered pocket
- Zippered sleeping bag compartment with bellowed divider
- Removable sleeping pad straps
- LightWire alloy frame creates low profile air space, optimizing pack balance and ventilation
- 3D-tensioned breathable mesh backpanel ensures supportive fit
- Sewn-in spacermesh
- Mesh-covered ventilated die-cut foam
- Adjustable sternum strap with safety whistle
- Multiple torso size options with torso adjustability
- Zippered stretch mesh hipbelt pockets
- ErgoPull hipbelt closure with hipbelts directly connect to backpanel mesh
- Seamless lumbar to hipbelt body wrap
Osprey Women’s Sirrus 36 Pack
| SIZE | WXS/S | WS/M |
| Torso Range | 13 – 17″ / 33 – 43 cm | 17 – 20″ / 43 – 51 cm |
| Volume / Pack Capacity | 34 liters / 2075 cubic inches | 36 liters / 2197 cubic inches |
| Dimensions | 24 x 12.2 x 12.2 in. | 26 x 12.2 x 12.2 in. |
| Weight | 3.072 lbs | 3.197 lbs |
| Hipbelt | 24 – 45″ / 60 – 114 cm | 26 – 45″ / 65 – 114 cm |
| Pack Weight Capacity | 15 – 35 lbs | |
Please note that the info provided above refers to the torso size the pack will fit, and NOT any dimensions of the pack. Below are some steps for how to get your torso length. You should have someone help take this measurement for you so it is accurate.
HOW to MEASURE TORSO LENGTH:
• Start at the iliac crest, which is the top of the hipbones on the side of your body. These act like a shelf for supporting a pack hipbelt.
• From this level on your spine, measure to the C7 vertebrae, the knobby bone at the base of your neck when you put your head down.
• Make sure you keep your back as straight as possible while measuring.
• This torso measurement determines what size Osprey pack you should carry. Refer to the size chart above to find your ideal size.
• If you are in between sizes, it is ideal to try them both on before ordering.
HOW to MEASURE HIPBELT SIZE:
• Measure around your hips at your iliac crest, NOT your waist.
• A properly fitted hipbelt rides centered over the hipbones and needs to be very snug.
• The padded portion should wrap well around your hips, leaving a gap of 3 to 6 inches between the tips of the both hip pads when securely tightened.
• Refer to the Hipbelt size info above to help determine your ideal pack size, but again, your torso length is what should determine your pack size, NOT the hipbelt.













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