Black Diamond Speed 40 vs Zpacks Nero Classic 30L

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

Zpacks Nero Classic 30L is the lighter option — 879 g lighter than the Black Diamond Speed 40 (74% less weight). If grams matter to you, that is the one to beat.

Spec	Black Diamond Speed 40	Zpacks Nero Classic 30L
Weight	1,180 g · 1.180 kg · 2.60 lb	301 g · 0.301 kg · 0.66 lb
Brand	Black Diamond	Zpacks
Category	Backpack	Backpack

Black Diamond Speed 40

1,180 g

Lightweight 40L alpine pack with removable framesheet.

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Zpacks Nero Classic 30L

301 g

Frameless ultralight backpack built with durable Ultra 100X fabric. Minimalist design for long-distance hikers prioritizing minimum pack weight.

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Black Diamond Speed 40 vs Zpacks Nero Classic 30L: which should you buy?

If saving weight is your priority, the Zpacks Nero Classic 30L wins — at 301 g it is 879 g (74%) 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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