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Black Diamond Beta Light 30L vs Osprey Exos 48

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

Black Diamond Beta Light 30L is the lighter option — 586 g lighter than the Osprey Exos 48 (46% less weight). If grams matter to you, that is the one to beat.
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Spec Black Diamond Beta Light 30L Osprey Exos 48
Weight 694 g · 0.694 kg · 1.53 lb 1,280 g · 1.280 kg · 2.82 lb
Brand Black Diamond Osprey
Category Backpack Backpack
Black Diamond Beta Light 30L
694 g

Ultralight roll-top backpack with stripped-down design. Removable hip belt and frame stays reduce weight to 452g for minimalist adventures.

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Osprey Exos 48
1,280 g

Lightweight 48L thru-hiking pack with excellent ventilation.

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Black Diamond Beta Light 30L vs Osprey Exos 48: which should you buy?

If saving weight is your priority, the Black Diamond Beta Light 30L wins — at 694 g it is 586 g (46%) lighter than the Osprey Exos 48 (1,280 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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