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Deuter Aircontact Lite 45+10 vs Six Moon Designs Fusion 55

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

Six Moon Designs Fusion 55 is the lighter option — 948 g lighter than the Deuter Aircontact Lite 45+10 (60% less weight). If grams matter to you, that is the one to beat.
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Spec Deuter Aircontact Lite 45+10 Six Moon Designs Fusion 55
Weight 1,570 g · 1.570 kg · 3.46 lb 622 g · 0.622 kg · 1.37 lb
Brand Deuter Six Moon Designs
Category Backpack Backpack
Deuter Aircontact Lite 45+10
1,570 g

Lightweight 45+10L pack with Aircontact Lite back.

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Six Moon Designs Fusion 55
622 g

Ultralight 55L frameless Dyneema pack.

Full details →

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Deuter Aircontact Lite 45+10 vs Six Moon Designs Fusion 55: which should you buy?

If saving weight is your priority, the Six Moon Designs Fusion 55 wins — at 622 g it is 948 g (60%) lighter than the Deuter Aircontact Lite 45+10 (1,570 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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