The Osprey Kestrel 58 is the larger sibling of the Kestrel 48, built for longer trips carrying more gear. Torso length adjusts across a wide 41–61 cm range for a precise fit, and the main compartment opens three ways — top, front J-zip, and bottom — which helps when you're digging for something mid-hike rather than unpacking everything. The body is bluesign-approved 420D recycled nylon; at 2130 g for 58 L, that works out to 36.7 g per liter, a lighter ratio than the smaller Kestrel 48, which is typical as classic packs scale up in size.
The AirScape back panel with tensioned mesh and the aluminum-stayed LightWire frame — fixed in place rather than removable — are built for comfort under sustained load. The pack rounds out with a front pocket, two side pockets, dual ice axe loops, and an integrated rain cover.
This one suits multi-day trekkers who value capacity and easy access to their gear over shaving weight.
Specifications
Color
Green
Main Compartment Volume
58 l (15.32 gal)
Total Volume
58 l (15.32 gal)
Weight
2130 g (4.70 lb)
Dimensions ( Height x Width x Depth )
82 x 37 x 31 (2.7 x 1.2 x 1.0 ft)
Back System Type
Tensioned mesh
Frame Type
Aluminum stays
Adjustable Back Length
✓
Torso Size Range
41 - 61 cm (1.3 - 2.0 ft)
Chest Strap
✓
Load Lifter Straps
✓
Gender-Specific Fit
Men's specific
Main Fabric
420D recycled nylon (bluesign approved)
Fabric Type
Recycled nylon
Main Compartment Access
Top lid, Front panel (J-zip), Bottom access
Front Pocket Count
1
Side Pocket Count
2
Ice Axe Loops
2
Hydration Compatible
✓
Integrated Rain Cover
✓
Intended Use
Multi-day trekking
Warranty Period
99 years
Volume/Weight Ratio f(x)
27.2 l/kg
Weight per Liter f(x)
36.7 g/l
Pack Style
Classic hiking pack
Hip Belt Type
Padded with pockets
Where to buy
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Category context Hiking Backpacks (407 products)
Weight
Heavier end· mainstream zone 941–1980 g· ranked 160 of 196
2130 g
33 g 6050 g
Total volume
Standard size· mainstream zone 38–60 l· ranked 129 of 407