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Osprey Kestrel 38 Litre Day / Thru-Hiking Backpack


Sale price $219.95 Regular price $249.95

Tax included.

The versatile Osprey Kestrel 38 Litre Backpack is designed to transport 11 to 18 kg loads anywhere you care to go. With a separate zippered sleeping bag compartment and external sleeping pad straps, it’s a fully functional overnight pack. Or cinch down the StraightJacket™ side compression straps and take it out for a day of canyoneering in Utah’s San Rafael swell.

Whatever you put inside, Osprey’s LightWire™ frame transfers the load to a comfortable spacer mesh harness and hipbelt. This innovative suspension system ensures all-day carrying comfort, especially in warm conditions when the Airscape™ mesh backpanel comes into play.
When it comes time to unpack, the main compartment has top loading or side zip access providing multiple portals to get at your gear without struggle.
Other storage features include top-lid and under-lid zippered pockets, side and front stretch mesh pockets, and two zippered hipbelt pockets.
Along with the extensive pocketry, there are dual front daisy chains and web attachment points on the top lid for anchoring gear to the exterior.
Other useful features include an external hydration sleeve, tuck-away ice tool loops, and Osprey’s Stow-on-the-Go™ trekking pole attachments. The entire pack can be shielded from the elements by deploying the integrated raincover.


  1. Includes an integrated and removable rain cover to protect your gear in the wet and stows away in its own external pocket at the bottom of the pack.
  2. Zippered hipbelt pockets provide secure storage for often needed items
  3. External hydration sleeve in backpanel simplifies refilling and protects pack contents from spills
  4. Large front stretch mesh pocket for quickly stashing extra gear
  5. Tuck away Ice Axe tool loops with bungee tie-offs provide secure tool carry
  6. Dual front panel daisy chains allow for extra external attachment points
  7. Upper and lower reverse StraightJacket™ side compression straps stabilize load and also serve as external gear carry straps
  8. Osprey’s unique Stow-on-the-Go™ system allows users to tuck away trekking poles quickly without having to remove their packs
  9. Adjustable harness provides custom torso fit
  10. Sleeping Bag Compartment - Wide mouth access sleeping bag compartment with divider stows your bag out of the way
  11. Sleeping Pad Straps - Adjustable and removable sleeping pad straps provide secure extra carry
  12. Side Zipper Access - Side zipper access to main compartment allows easy accessibility to the inside contents of the pack
    Vertical Zippered Side Pocket - Full length zippered side pocket aids organization
  13. 3.5mm LightWire™ peripheral frame effectively transfers the load from harness to hip belt.Atilon framesheet spreads load across the entire backpanel to the peripheral frame
  14. Airscape Backpanel - mesh covered ridged foam allows maximum ventilation while keeping the load close to the body


Load Range™
11-18 Kg.

Volumes and Weights

US and International weight and volume specifications

Size liter kg.
S/M 36 1.37
M/L 38 1.42


71 cm high x 38 cm wide x 40 cm deep

Key Fabrics used:
  • Main: 210 denier nylon double ripstop
  • Accent: 420 HD nylon packcloth
  • Bottom:420 HD nylon packcloth

Sizing and Fitting of your Osprey Pack

Fit is the key to pack performance. Take the time to get it right. Most Osprey packs are available in multiple sizes to fit a range of torso lengths. To find your torso length, have a friend measure your back along the spine (as shown in the picture below) from the level of your iliac crest (the top of your hipbones) to your C7 (the knobby bone at the base of your neck).
Use the table below to determine your pack size.
Kestrel 48 Litre Backpack Small/Medium Medium/Large
Back Length 16-20"/40.5-51cm 19-23"/48-58.5cm