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Black Diamond Speed 40 vs Deuter Speed Lite 20

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

Deuter Speed Lite 20 is the lighter option — 760 g lighter than the Black Diamond Speed 40 (64% less weight). If grams matter to you, that is the one to beat.
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Spec Black Diamond Speed 40 Deuter Speed Lite 20
Weight 1,180 g · 1.180 kg · 2.60 lb 420 g · 0.420 kg · 0.93 lb
Brand Black Diamond Deuter
Category Backpack Backpack
Black Diamond Speed 40
1,180 g

Lightweight 40L alpine pack with removable framesheet.

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Deuter Speed Lite 20
420 g

Ultralight 20L daypack for fast hikes and trail running.

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Black Diamond Speed 40 vs Deuter Speed Lite 20: which should you buy?

If saving weight is your priority, the Deuter Speed Lite 20 wins — at 420 g it is 760 g (64%) lighter than the Black Diamond Speed 40 (1,180 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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