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Gossamer Gear Kumo 36 Superlight vs Zpacks Nero Classic Backpack

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

Zpacks Nero Classic Backpack is the lighter option — 125 g lighter than the Gossamer Gear Kumo 36 Superlight (30% less weight). If grams matter to you, that is the one to beat.
Spec Gossamer Gear Kumo 36 Superlight Zpacks Nero Classic Backpack
Weight 414 g · 0.414 kg · 0.91 lb 289 g · 0.289 kg · 0.64 lb
Brand Gossamer Gear Zpacks
Category Backpack Backpack
Gossamer Gear Kumo 36 Superlight
414 g

Frameless 36L ultralight pack in recycled Robic nylon, ideal for day hikes and minimalist overnight loads up to 25 lbs.

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Zpacks Nero Classic Backpack
289 g

Ultralight frameless Dyneema Composite backpack, just 289g. Roll-top closure with mesh side pockets. Ideal for SUL hikers carrying under 10 lbs base weight.

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Gossamer Gear Kumo 36 Superlight vs Zpacks Nero Classic Backpack: which should you buy?

If saving weight is your priority, the Zpacks Nero Classic Backpack wins — at 289 g it is 125 g (30%) lighter than the Gossamer Gear Kumo 36 Superlight (414 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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