Durston Gear Kakwa 55 UltraGrid Pack Small vs Gossamer Gear Murmur 36 Backpack
Weight and specs compared for 2026 — and which one to choose.
Updated ultralight pack size S, 28.9oz, with improved hipbelt and durability
Full details →Lightest frameless pack with welded ALUULA Graflyte fabric for ultralight backpacking.
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
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.