The Sirrus 24 backpack was designed specifically for demanding female hikers looking for the perfect combination of comfort, ventilation and durability on day trips. Thanks to its adjustable women-specific fit, it adapts perfectly to every body shape and ensures optimal load distribution throughout the hike.
A well-thought-out storage system with a double front zip, hipbelt pockets and side mesh pockets ensures that everything you need is always within reach. The included raincover stored in the bottom pocket of the pack also means you won’t be caught out by a sudden change in weather.
- Exceptional ventilation and unrivalled carrying comfort
The AIRSPEED™ system uses a LightWire perimeter frame to tension a mesh trampoline back panel, creating an air gap between your back and the pack so your back stays cool even on steeper climbs; the padded harness with breathable spacer-mesh zones and the CrossBody ErgoPull system on the hipbelt work together to distribute the load evenly, keeping the carry comfortable even after full days on the trail. - Perfectly organised storage for every situation
The pack offers wide access to the main compartment via a double front zip, a vertical front pocket for extra layers, zippered hipbelt pockets for snacks or a phone, a top pocket with a key clip, and side mesh pockets for water bottles—so every item has its place and you can focus fully on the terrain ahead.
- Double front zip for easy access
- Vertical front pocket for extra layers
- Two zippered hipbelt pockets
- Top pocket with key clip
- Side mesh bottle pockets
- Internal sleeve with hydration hose port
- Stow-on-the-Go trekking pole attachment system
- Ice tool loop with bungee tie-off
- Adjustable sternum strap with magnetic closure and whistle
- Upper and lower side compression straps
- Included raincover stored in the bottom pocket
- bluesign® PRODUCT certification
Specifications:
Capacity: 24 litres
Weight: 1300 g
Dimensions: 55 × 34 × 28 cm
Use: day hiking
Fit: women-specific with adjustable system
Back system: AIRSPEED™ with LightWire frame and mesh trampoline back panel
Hipbelt: padded, mesh, CrossBody ErgoPull system
Sternum strap: adjustable, magnetic closure, safety whistle, hydration bite-valve attachment
Hydration: internal sleeve with HydraClip and hose port
Raincover: included, stored in the bottom pocket
Certification: bluesign® PRODUCT
The goods are in the following categories:
women's trekking backpacks OSPREY Hiking Backpacks Autumn 2026 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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