Deuter Aircontact Core 50+10 vs Osprey Atmos AG 50

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

Osprey Atmos AG 50 is the lighter option — 50 g lighter than the Deuter Aircontact Core 50+10 (3% less weight). If grams matter to you, that is the one to beat.

Spec	Deuter Aircontact Core 50+10	Osprey Atmos AG 50
Weight	1,950 g · 1.950 kg · 4.30 lb	1,900 g · 1.900 kg · 4.19 lb
Brand	Deuter	Osprey
Category	Backpack	Backpack

Deuter Aircontact Core 50+10

1,950 g

Versatile 50+10L pack with Aircontact back system.

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Osprey Atmos AG 50

1,900 g

Versatile 50L Anti-Gravity pack for multi-day adventures.

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Deuter Aircontact Core 50+10 vs Osprey Atmos AG 50: which should you buy?

If saving weight is your priority, the Osprey Atmos AG 50 wins — at 1,900 g it is 50 g (3%) 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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