Durston Gear Kakwa 55 vs Osprey Exos 38

Weight and specs compared for 2026 — and which one to choose.

Durston Gear Kakwa 55 is the lighter option — 351 g lighter than the Osprey Exos 38 (29% less weight). If grams matter to you, that is the one to beat.

Spec	Durston Gear Kakwa 55	Osprey Exos 38
Weight	839 g · 0.839 kg · 1.85 lb	1,190 g · 1.190 kg · 2.62 lb
Brand	Durston Gear	Osprey
Category	Backpack	Backpack

Durston Gear Kakwa 55

839 g

Versatile 55L lightweight pack in UltraGrid fabric with aluminum frame stays. Excellent load transfer for heavier loads up to 40 lbs.

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Osprey Exos 38

1,190 g

Ultralight ventilated multi-day pack with AirSpeed suspended mesh backpanel and removable top lid for fast-and-light backpacking.

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Durston Gear Kakwa 55 vs Osprey Exos 38: which should you buy?

If saving weight is your priority, the Durston Gear Kakwa 55 wins — at 839 g it is 351 g (29%) lighter than the Osprey Exos 38 (1,190 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest backpack page, or browse the full gear weight database.

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