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Durston Gear Kakwa 55 UltraGrid Pack Small vs Osprey Aura AG 65

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

Durston Gear Kakwa 55 UltraGrid Pack Small is the lighter option — 1,190 g lighter than the Osprey Aura AG 65 (59% less weight). If grams matter to you, that is the one to beat.
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Spec Durston Gear Kakwa 55 UltraGrid Pack Small Osprey Aura AG 65
Weight 820 g · 0.820 kg · 1.81 lb 2,010 g · 2.010 kg · 4.43 lb
Brand Durston Gear Osprey
Category Backpack Backpack
Durston Gear Kakwa 55 UltraGrid Pack Small
820 g

Updated ultralight pack size S, 28.9oz, with improved hipbelt and durability

Full details →
Osprey Aura AG 65
2,010 g

Women's 65L Anti-Gravity pack with FitPod adjustment.

Full details →

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Durston Gear Kakwa 55 UltraGrid Pack Small vs Osprey Aura AG 65: which should you buy?

If saving weight is your priority, the Durston Gear Kakwa 55 UltraGrid Pack Small wins — at 820 g it is 1,190 g (59%) lighter than the Osprey Aura AG 65 (2,010 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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