The Osprey Stratos/Sirrus Series is Osprey's top-of-the-line backpack series, designed to be lightweight, breathable, and comfortable for hiking. The pack features a LightWire™ aluminum frame for a supportive, stable carry and plenty of airflow.
This manual introduces the Stratos and Sirrus backpack series, explaining their design, key features, and how to get the most out of the packs. It covers gender‑specific models, fabric construction, and the AirSpeed suspension system.
The guide includes sections on backpack care, proper packing, tool and trekking‑pole attachment, water‑bladder use, integrated rain cover, and detailed instructions for adjusting straps and the ErgoPull waist belt. This manual is written in Chinese.
| Fabric material (outer) | 210D Double Ripstop Nylon |
|---|---|
| Fabric material (main) | 420HD Nylon |
| Water reservoir capacity | Up to 3 L |
| Suspension system | AirSpeed suspension system |
After each trip, be sure to thoroughly clean the backpack.