Deuter Aircontact Core 50+10 vs Fjallraven Kajka 55

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

Deuter Aircontact Core 50+10 is the lighter option — 150 g lighter than the Fjallraven Kajka 55 (7% less weight). If grams matter to you, that is the one to beat.

Spec	Deuter Aircontact Core 50+10	Fjallraven Kajka 55
Weight	1,950 g · 1.950 kg · 4.30 lb	2,100 g · 2.100 kg · 4.63 lb
Brand	Deuter	Fjallraven
Category	Backpack	Backpack

Deuter Aircontact Core 50+10

1,950 g

Versatile 50+10L pack with Aircontact back system.

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Fjallraven Kajka 55

2,100 g

Classic 55L Swedish trekking pack with wooden frame stays.

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Deuter Aircontact Core 50+10 vs Fjallraven Kajka 55: which should you buy?

If saving weight is your priority, the Deuter Aircontact Core 50+10 wins — at 1,950 g it is 150 g (7%) 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.

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