Gossamer Gear Mariposa 60 vs Zpacks Nero Classic 50L

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

Zpacks Nero Classic 50L is the lighter option — 328 g lighter than the Gossamer Gear Mariposa 60 (53% less weight). If grams matter to you, that is the one to beat.

Spec	Gossamer Gear Mariposa 60	Zpacks Nero Classic 50L
Weight	617 g · 0.617 kg · 1.36 lb	289 g · 0.289 kg · 0.64 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 Nero Classic 50L

289 g

Frameless ultralight backpack made from Dyneema Composite Fabric. Minimalist design for gram-conscious hikers and ultralight enthusiasts.

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Gossamer Gear Mariposa 60 vs Zpacks Nero Classic 50L: which should you buy?

If saving weight is your priority, the Zpacks Nero Classic 50L wins — at 289 g it is 328 g (53%) 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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