Fjallraven Kajka 55 vs Zpacks Arc Haul Ultra 50L
Weight and specs compared for 2026 — and which one to choose.
Classic 55L Swedish trekking pack with wooden frame stays.
Full details →Ultralight thru-hiking pack with carbon fiber frame and Dyneema Composite Hybrid fabric. Features roll-top closure and adjustable torso fit.
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Fjallraven Kajka 55 vs Zpacks Arc Haul Ultra 50L: which should you buy?
If saving weight is your priority, the Zpacks Arc Haul Ultra 50L wins — at 606 g it is 1,494 g (71%) lighter than the Fjallraven Kajka 55 (2,100 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.