Osprey Stratos/Sirrus Backpack
Best versatile daypack for hikers seeking superior ventilation and comfort.
This is the gold standard for hikers who prioritize ventilation above all else. The suspended mesh back panel creates a cooling gap that makes heavy loads feel surprisingly light, though you do sacrifice some internal organization and streamlined packing space to accommodate that complex frame.
$180.00
Out of stock
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Who it's for
- Hikers in warm climates who prioritize staying cool and dry
- All-weather trekkers seeking built-in protection against unpredictable elements
- Hikers with unique proportions needing a tailored, ergonomic fit
Who should skip it
- Ultralight backpackers who prioritize shaving every possible ounce
- Commuters or travelers wanting a streamlined pack for urban use
- Users needing to carry rigid, bulky, or rectangular gear items
Performance breakdown
Ventilation performance
The suspended mesh back panel keeps your back remarkably dry and cool.
Load distribution
The internal frame effectively transfers weight to the hips for all-day comfort.
Organization accessibility
Smart pocket placement makes grabbing snacks or layers quick and intuitive.
Adjustability
The torso length adjustment system ensures a dialed-in fit for most users.
Durability
Rugged nylon construction withstands abrasive trails and heavy daily use.
Rain protection
The integrated raincover deploys instantly to keep your gear bone-dry.
Key Specs
Capacity
24 L
Weight
2.776 lbs
Dimensions
23.23H x 13.39W x 9.45D inches
Material
Sustainable materials
Frame Type
Internal Frame
Hydration Compatible
Yes
Sternum Strap
Yes
Hip Belt
Yes
Know before you buy
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Ask Metto anything about the Osprey Stratos/Sirrus Backpack before you decide.