Gossamer Gear Mirage 40L Pack ALUULA vs Gossamer Gear Murmur 36 Hyperlight Backpack
Weight and specs compared for 2026 — and which one to choose.
Lightest framed 40L backpack, 19.4oz, ALUULA Graflyte V52 ultra-lightweight fabric
Full details →Frameless 36L hyperlight thru-hiking pack made from ALUULA Graflyte fabric, with roll-top closure and included torso pad.
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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 324 g (59%) lighter than the Gossamer Gear Mirage 40L Pack ALUULA (549 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.