Gossamer Gear Gorilla 40 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 — 426 g lighter than the Gossamer Gear Gorilla 40 (65% less weight). If grams matter to you, that is the one to beat.

Spec	Gossamer Gear Gorilla 40	Gossamer Gear Murmur 36 Hyperlight Backpack
Weight	651 g · 0.651 kg · 1.44 lb	225 g · 0.225 kg · 0.50 lb
Brand	Gossamer Gear	Gossamer Gear
Category	Backpack	Backpack

Gossamer Gear Gorilla 40

651 g

Lightweight 40L weekend pack with internal frame.

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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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Gossamer Gear Gorilla 40 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 426 g (65%) lighter than the Gossamer Gear Gorilla 40 (651 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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