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Gossamer Gear Mariposa 60 vs ULA Circuit

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

Gossamer Gear Mariposa 60 is the lighter option — 124 g lighter than the ULA Circuit (11% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Mariposa 60 ULA Circuit
Weight 968 g · 0.968 kg · 2.13 lb
size Medium, average weight with stock M Straight belt
 1,092 g · 1.092 kg · 2.41 lb
as listed 'at a glance'; size not stated on the page
Brand Gossamer Gear ULA
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 →
ULA Circuit
1,092 g

Ultralight 68L frameless pack. Thru-hiker favourite.

See it in your base weight → Full details →

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Gossamer Gear Mariposa 60 vs ULA Circuit: which should you buy?

If saving weight is your priority, the Gossamer Gear Mariposa 60 wins — at 968 g it is 124 g (11%) lighter than the ULA Circuit (1,092 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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