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Arc'teryx Bora AR 63 vs Black Diamond Speed 40

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

Black Diamond Speed 40 is the lighter option — 1,090 g lighter than the Arc'teryx Bora AR 63 (48% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Bora AR 63 Black Diamond Speed 40
Weight 2,270 g · 2.270 kg · 5.00 lb 1,180 g · 1.180 kg · 2.60 lb
Brand Arc'teryx Black Diamond
Category Backpack Backpack
Arc'teryx Bora AR 63
2,270 g

Technical 63L pack with RotoGlide hipbelt for alpine approaches.

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Black Diamond Speed 40
1,180 g

Lightweight 40L alpine pack with removable framesheet.

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Arc'teryx Bora AR 63 vs Black Diamond Speed 40: which should you buy?

If saving weight is your priority, the Black Diamond Speed 40 wins — at 1,180 g it is 1,090 g (48%) lighter than the Arc'teryx Bora AR 63 (2,270 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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