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Durston Gear Kakwa 55 UltraGrid Pack Small vs Gossamer Gear Murmur 36 Backpack

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

Gossamer Gear Murmur 36 Backpack is the lighter option — 517 g lighter than the Durston Gear Kakwa 55 UltraGrid Pack Small (63% 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 Gossamer Gear Murmur 36 Backpack
Weight 820 g · 0.820 kg · 1.81 lb 303 g · 0.303 kg · 0.67 lb
Brand Durston Gear Gossamer Gear
Category Backpack Backpack
Durston Gear Kakwa 55 UltraGrid Pack Small
820 g

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

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Gossamer Gear Murmur 36 Backpack
303 g

Lightest frameless pack with welded ALUULA Graflyte fabric for ultralight backpacking.

Full details →

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Durston Gear Kakwa 55 UltraGrid Pack Small vs Gossamer Gear Murmur 36 Backpack: which should you buy?

If saving weight is your priority, the Gossamer Gear Murmur 36 Backpack wins — at 303 g it is 517 g (63%) lighter than the Durston Gear Kakwa 55 UltraGrid Pack Small (820 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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