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Gossamer Gear Mariposa 60 vs Zpacks Super Nero Ultra 50L Backpack

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

Zpacks Super Nero Ultra 50L Backpack is the lighter option — 272 g lighter than the Gossamer Gear Mariposa 60 (44% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Mariposa 60 Zpacks Super Nero Ultra 50L Backpack
Weight 617 g · 0.617 kg · 1.36 lb 345 g · 0.345 kg · 0.76 lb
Brand Gossamer Gear Zpacks
Category Backpack Backpack
Gossamer Gear Mariposa 60
617 g

Ultralight 60L frameless pack with sit pad back panel.

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Zpacks Super Nero Ultra 50L Backpack
345 g

Versatile ultralight frameless pack in Dyneema Composite Fabric. Sized for multi-day thru-hiking trips while staying under 350g total weight.

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Gossamer Gear Mariposa 60 vs Zpacks Super Nero Ultra 50L Backpack: which should you buy?

If saving weight is your priority, the Zpacks Super Nero Ultra 50L Backpack wins — at 345 g it is 272 g (44%) lighter than the Gossamer Gear Mariposa 60 (617 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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