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Deuter Aircontact Core 50+10 vs Gregory Zulu 35

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

Gregory Zulu 35 is the lighter option — 900 g lighter than the Deuter Aircontact Core 50+10 (46% less weight). If grams matter to you, that is the one to beat.
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Spec Deuter Aircontact Core 50+10 Gregory Zulu 35
Weight 1,950 g · 1.950 kg · 4.30 lb 1,050 g · 1.050 kg · 2.31 lb
Brand Deuter Gregory
Category Backpack Backpack
Deuter Aircontact Core 50+10
1,950 g

Versatile 50+10L pack with Aircontact back system.

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Gregory Zulu 35
1,050 g

Ventilated 35L daypack with 3D Hydro reservoir sleeve.

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Deuter Aircontact Core 50+10 vs Gregory Zulu 35: which should you buy?

If saving weight is your priority, the Gregory Zulu 35 wins — at 1,050 g it is 900 g (46%) lighter than the Deuter Aircontact Core 50+10 (1,950 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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