A rugged, streamlined take on the classic rucksack, the Osprey Kestrel LT 45 Men's Pack is built for overnight treks and short multi-day adventures where dependable storage and efficient organisation matter. Its 45-litre capacity combines a spacious main compartment with versatile access points, so you can reach buried clothing and essential gear without turning your pack inside out. With a practical design focused on stability, accessibility and trail-ready durability, it helps keep your attention on the journey rather than your gear.

From winding mountain paths to unpredictable weather, the Kestrel LT 45 is designed to keep your equipment organised and ready for the next leg. Dedicated attachment points, adjustable compression straps and removable external sleeping pad or accessory straps give you flexible ways to carry your load, while the internal hydration sleeve and stretch side pockets keep water within easy reach. A padded hipbelt with two zippered pockets adds convenient storage, and the included raincover helps protect your gear when the weather turns. With clever storage throughout and an extended side-zip opening for easier access, this streamlined rucksack is ready to shoulder the demands of multi-day exploration.

Key Features

  • Weather Protection: Be ready for changing conditions with an included raincover stored in a pocket at the base of the pack, ready to deploy when showers arrive.
  • Spacious Top-Loading Main Compartment: Pack your overnight essentials into the main compartment with cinch closure and top lid, offering practical storage for multi-day trips.
  • Organised Fixed Top Lid: Keep smaller items secure with a large zippered pocket, top-panel lash points and an under-lid zippered pocket with key clip.
  • Hydration-Ready Design: Use the internal sleeve with Hydraclip to hang a hydration reservoir and keep your drinking system organised on the trail.
  • Expandable Front Stash Pocket: The front-panel shove-it pocket with stretch gussets provides a convenient place to stash extra layers, damp rainwear and other bulky items.
  • Technical Gear Attachment: Secure essential equipment with upper side compression straps featuring ice axe, trekking pole and tool capture, alongside dual lower side compression straps to help stabilise your load.
  • Dedicated Tool Loops: Carry technical outdoor equipment using dual ice axe, trekking pole and tool loops on each side of the front panel.
  • Dual-Access Stretch Side Pockets: Keep water bottles and other frequently used items close at hand with flexible stretch side pockets offering access from two directions.
  • Extended Side-Zip Access: Reach items packed deeper inside through the extended side-zip secondary access to the main compartment, while three sliders on the front and side zips provide flexible access points.
  • Padded Hipbelt with Two Zippered Pockets: Keep trail snacks, a phone and other small essentials within easy reach using the padded hipbelt with two zippered pockets.
  • Removable Sleeping Pad and Accessory Straps: Attach a sleeping mat or other compatible equipment externally with removable external sleeping pad/accessory straps, giving you more flexibility when packing for an overnight trip.
  • Built for Multi-Day Adventures: With its 45-litre capacity, versatile storage and practical external attachment options, the Kestrel LT 45 delivers a rugged, streamlined approach to carrying your essentials on demanding trails.
Yes, you are fully prepared for sudden weather changes. It features a highly convenient Included raincover stores in pocket at base of pack, allowing you to quickly deploy waterproof protection over your gear during a storm.
It offers unmatched packing versatility. While it functions as a Top-loading main compartment with cinch closure and top lid, it also features an Extended side-zip secondary access to main compartment, where Three sliders on front and side zippers grants access from any point so you never have to fully unpack.
Absolutely. It is perfectly equipped for technical excursions, utilizing Dual ice axe/trekking pole/tool loops on each side of front panel combined with Upper side compression straps with ice axe/trekking pole/tool capture to lock your hardware safely in place.
Yes, it is fully equipped for overnight camping trips. It includes highly convenient Removable external sleeping pad/accessory straps, making it incredibly easy to attach your sleep system or extra camp gear directly to the outside of the bag.
Yes, it is designed for rapid layering adjustments on the trail. It features a highly stretchable Front panel shove-it pocket with stretch gussets, which functions as a Large front panel shove-it pocket with stretch gussets that perfectly accommodates damp raincoats or bulky outer layers.
Staying fueled and hydrated on the move is effortless. It includes Dual-access stretch side pockets carry water bottles or other quick-access items, an Internal sleeve with Hydraclip for easily hanging hydration reservoir, and a deeply cushioned Padded hipbelt with two zippered pockets for your phone and trail snacks.

Brand : Osprey

SKU: OSPR-kestrelLT45-m

Model # : kestrelLT45-m

Gender : Mens

Pack Volume : 40-59L

Volume : 45 L

Dimensions : 78 cmH X 34 cmW X 35 cmD

Weight : 1.93 kg

Fabric :

  • Main : bluesign APPROVED | 100% recycled 300D polyester w/ diamond ripstop | DWR treatment made without PFAS
  • Lining : bluesign APPROVED | 100% recycled 210D nylon | DWR treatment made without PFAS
  • Bottom : bluesign APPROVED | 100% recycled 600D polyester | DWR treatment made without PFAS
Free shipping on orders over $140 to Australia*
Shipping on small orders (under $140) only $9.95
Shipping on all orders to NZ only $9.95
Express shipping to Australia & NZ only $15

Standard Shipping (AU) – FREE on orders over $140 and $9.95 on orders under $140. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

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Osprey Packs are covered by Osprey's All Mighty Guarantee and will be repaired if faulty. Replacement may be offered if repair is not possible. Osprey Hydraulics Bladders covered by limited 1 year manufacturing defect warranty. Hydraulics Bladders & Soft Flasks: please visit https://support.hydrapak.com/hc/en-us/categories/115002258407-Warranty to lodge a direct warranty claim.

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products).
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

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More About this Product Family

Designed for years of rugged adventure, the Osprey men’s Kestrel and women’s Kyte trekking pack collection provides reliable load support and intuitive organisation of your outdoor gear to tackle tough conditions.

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