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Gossamer Gear Mariposa 60 vs Six Moon Designs Fusion 55

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

No winner on weight yet. The recorded weights have not both been verified on the same basis. Size, included parts and single-item versus pair weights can differ. Check the linked sources before choosing a replacement.

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Spec Gossamer Gear Mariposa 60 Six Moon Designs Fusion 55
Weight 968 g · 0.968 kg · 2.13 lb
Average weight, Medium pack with M Straight belt; other pack and belt sizes differ
 622 g · 0.622 kg · 1.37 lb
Brand Gossamer Gear Six Moon Designs
Category Backpack Backpack
Gossamer Gear Mariposa 60
968 g

Ultralight 60L frameless pack with sit pad back panel.

See it in your base weight → Full details →
Six Moon Designs Fusion 55
622 g

Ultralight 55L frameless Dyneema pack.

See it in your base weight → Full details →

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Gossamer Gear Mariposa 60 vs Six Moon Designs Fusion 55: which should you buy?

The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.

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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