The Osprey Sirrus 36 is a top-loading hiking backpack designed specifically for women, offering exceptionally airy carry comfort thanks to the innovative back system construction. Whether you’re planning a day trip into the outdoors or a short weekend hike with an overnight stay, this 36-litre pack provides comfort and plenty of space for all your gear.
A well-thought-out layout of pockets and storage areas ensures you always have everything within reach, and the integrated raincover stored in a small pocket at the bottom of the pack protects you even in unexpected rain. The Sirrus 36 is also a bluesign® certified product, guaranteeing that materials and components meet strict environmental and social criteria set by an independent third party.
- Airy AirSpeed™ back system for maximum comfort
The AirSpeed™ system uses a lightweight LightWire peripheral frame that tensions the mesh back panel, creating an effective trampoline-style construction that provides firm load support while allowing free airflow between your back and the pack—so your back stays drier even on tougher terrain or in warm weather. - Smart storage for every situation on the trail
The main compartment with closure and a fixed top lid is complemented by a separate lower compartment accessed via a zip, a large front pocket with a vertical zip ideal for spare clothing, roomy side pockets for water bottles, and two zippered hipbelt pockets for a phone, snack or small essentials—so all your kit is perfectly organised and easy to access.
- Top-loading with lid and under-lid pocket
- Lower zip access to the sleeping bag compartment
- Large front pocket with vertical zip
- Two zippered hipbelt pockets
- Side stretch pockets for bottles
- Integrated raincover in the bottom pocket
- Stow-on-the-Go trekking pole system
- Loop and attachment for ice tools
- Attachment points for a sleeping mat
- Well-designed internal sleeve for a hydration reservoir
- Adjustable sternum strap with magnetic closure
- Hipbelt with ErgoPull cross-pull system
- Upper and lower side compression straps
- bluesign® PRODUCT certification
Specifications:
Pack type: hiking, top-loading
Weight: 1490 g
Dimensions: 65 × 34 × 33 cm
Volume: 36 L
Intended use: day hikes and short overnights
Back system: AirSpeed™ with LightWire frame
Back and strap surface: breathable spacer mesh
Hipbelt: padded, mesh, ErgoPull system
Sternum strap: adjustable, magnetic buckle, whistle, hose clip
Hydration: internal sleeve with hose port and Hydraclip hook
Raincover: integrated, stored in a pocket at the bottom of the pack
Certification: bluesign® PRODUCT
Fit: women’s (adjustable)
The goods are in the following categories:
women's trekking backpacks Women's Hiking Backpacks OSPREY all
We offer more than 500 innovative, high-performance Osprey backpacks that reflect a love of adventure and dedication to the outdoors. Osprey backpacks for any adventure and season, we have in stock with free shipping.
The American company Osprey focuses exclusively on the production of backpacks, which is strongly reflected in their high quality, design and technical details and improvements (e.g. Custom Molding System - heat moldable waist belt). In the OSPREY range you will find backpacks designed for several days of demanding treks in the wilderness, as well as a perfectly refined series of backpacks for cycling and for rock climbing fans, and it does not forget about small travellers with a range of technical children's backpacks. Osprey backpacks have won awards from prestigious outdoor magazines such as Backpacker Magazine, Outside Magazine.
Choosing the Right Size for Your OSPREY Backpack
Most OSPREY backpacks are equipped with an adjustable back system that can be lengthened or shortened by up to 10 cm. In addition, there are also standard sizes:
- S/M (M; MD) – for people up to approximately 178 cm.
- M/L (L; LG; L/XL) – for people taller than 178 cm.
New size labels
Some men's backpacks are available in size L/XL. This corresponds to the standard size M/L (L; LG) and is also intended for users taller than 178 cm.
Special models
- EXOS, LEVITY – also available in size S (SM), suitable for shorter men, juniors, and women (approx. 160–170 cm).
Women's Backpacks
Attention! Some women's backpacks are available in two sizes of the back system:
- WS (WXS/WS; XS/S) – for women up to approx. 168 cm.
- WM (WM/WL) – for women taller than 168 cm.
- WL – for women's running backpacks, designed for people approximately 173 cm and taller.
| Back size | 40.5 cm | 43cm | 46cm | 48cm | 51cm | 53cm | 56-58.5cm | 61-63.5cm |
| Aether Pro | S | S | S or M | S or M | M or L | M or L | L | - |
| Aether AG™ | S | S | S or M | S or M | M or L | M or L | L | - |
| Aether AG™ 70 | S | S | S or M | S or M | M or L | M or L | Large or Extra Large | XL |
| Aether (before 2021) | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Aether/Aether Pls (after 2020) | - | S/M | S/M | S/M or L/XL | S/M or L/XL | S/M or L/XL | L/XL | - |
| Aether Extended Fit | - | S/M | S/M | S/M | S/M OR L/XL | S/M OR L/XL | S/M OR L/XL | - |
| Archeon 70/45 | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Atmos AG™ (2018-2021) | S | S | S or M | S or M | M or L | M or L | L | - |
| Atmos LT | S | S/M | S/M | S/M OR L/XL | S/M OR L/XL | S/M OR L/XL | L/XL | - |
| Atmos AG™ (2022-current) | - | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Exos (before 2023) | S | S | S or M | S or M | M or L | M or L | L | - |
| Exos (2022-current) | - | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Exos Pro | - | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Kestrel | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Levity | S | S | S or M | S or M | M or L | M or L | L | - |
| Talon Extended Fit | - | S/M | S/M | S/M | S/M | XS/S or M/L | M/L | - |
| Talon/Pro | S/M | S/M | S/M | S/M or L/XL | L/XL | L/XL | L/XL | - |
| Osprey UNLTD Airscape | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Osprey UNLTD AntiGravity | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Zenith | - | - | M | M | M or L | M or L | Large or Extra Large | XL |
| Duro | S/M | S/M | S/M or M/L | S/M or M/L | M/L | M/L | - | - |
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