Durston Gear Kakwa 55 vs Zpacks Arc Blast 55L
Weight and specs compared for 2026 — and which one to choose.
Versatile 55L lightweight pack in UltraGrid fabric with aluminum frame stays. Excellent load transfer for heavier loads up to 40 lbs.
Full details →Frameless Dyneema pack with excellent load carry for its weight.
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Durston Gear Kakwa 55 vs Zpacks Arc Blast 55L: which should you buy?
If saving weight is your priority, the Zpacks Arc Blast 55L wins — at 450 g it is 389 g (46%) lighter than the Durston Gear Kakwa 55 (839 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.