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Gossamer Gear Mirage 40L Pack ALUULA vs Gossamer Gear Murmur 36 Hyperlight Backpack

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

Gossamer Gear Murmur 36 Hyperlight Backpack is the lighter option — 302 g lighter than the Gossamer Gear Mirage 40L Pack ALUULA (57% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Mirage 40L Pack ALUULA Gossamer Gear Murmur 36 Hyperlight Backpack
Weight 527 g · 0.527 kg · 1.16 lb
total incl. roll-top straps and Lightrek bungee; single size
 225 g · 0.225 kg · 0.50 lb
as listed, one size only; without the optional torso pad (with pad 304 g)
Brand Gossamer Gear Gossamer Gear
Category Backpack Backpack
Gossamer Gear Mirage 40L Pack ALUULA
527 g

Lightest framed 40L backpack, 19.4oz, ALUULA Graflyte V52 ultra-lightweight fabric

See it in your base weight → Full details →
Gossamer Gear Murmur 36 Hyperlight Backpack
225 g

Frameless 36L hyperlight thru-hiking pack made from ALUULA Graflyte fabric, with roll-top closure and included torso pad.

See it in your base weight → Full details →

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Gossamer Gear Mirage 40L Pack ALUULA vs Gossamer Gear Murmur 36 Hyperlight Backpack: which should you buy?

If saving weight is your priority, the Gossamer Gear Murmur 36 Hyperlight Backpack wins — at 225 g it is 302 g (57%) lighter than the Gossamer Gear Mirage 40L Pack ALUULA (527 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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