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Gossamer Gear Murmur 36 Hyperlight Backpack vs Mountain Hardwear Alakazam 45L ALUULA Graflyte

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

Gossamer Gear Murmur 36 Hyperlight Backpack is the lighter option — 595 g lighter than the Mountain Hardwear Alakazam 45L ALUULA Graflyte (73% less weight). If grams matter to you, that is the one to beat.
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Spec Gossamer Gear Murmur 36 Hyperlight Backpack Mountain Hardwear Alakazam 45L ALUULA Graflyte
Weight 225 g · 0.225 kg · 0.50 lb 820 g · 0.820 kg · 1.81 lb
Brand Gossamer Gear Mountain Hardwear
Category Backpack Backpack
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.

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Mountain Hardwear Alakazam 45L ALUULA Graflyte
820 g

Spring 2026 framed ultralight pack in new ALUULA fabric; one of first mainstream packs with this material

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Gossamer Gear Murmur 36 Hyperlight Backpack vs Mountain Hardwear Alakazam 45L ALUULA Graflyte: which should you buy?

If saving weight is your priority, the Gossamer Gear Murmur 36 Hyperlight Backpack wins — at 225 g it is 595 g (73%) lighter than the Mountain Hardwear Alakazam 45L ALUULA Graflyte (820 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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