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Gossamer Gear Mirage 40 vs Zpacks Arc Haul Ultra 40L

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

Gossamer Gear Mirage 40 is the lighter option — 70 g lighter than the Zpacks Arc Haul Ultra 40L (12% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Mirage 40 Zpacks Arc Haul Ultra 40L
Weight 527 g · 0.527 kg · 1.16 lb
total as listed; page names no sizes (torso 16-20 in)
 597 g · 0.597 kg · 1.32 lb
as listed in product header; size/torso variant not stated on page
Brand Gossamer Gear Zpacks
Category Backpack Backpack
Gossamer Gear Mirage 40
527 g

40L frameless ultralight pack crafted from ALUULA Graflyte fabric, one of the lightest full-featured backpacks available in 2026.

See it in your base weight → Full details →
Zpacks Arc Haul Ultra 40L
597 g

Dyneema 40L pack at 540g. Compact version of Arc Haul for minimalist backpacking setups.

See it in your base weight → Full details →

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Gossamer Gear Mirage 40 vs Zpacks Arc Haul Ultra 40L: which should you buy?

If saving weight is your priority, the Gossamer Gear Mirage 40 wins — at 527 g it is 70 g (12%) lighter than the Zpacks Arc Haul Ultra 40L (597 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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