Gossamer Gear Murmur 36 Hyperlight Backpack vs Hyperlite Mountain Gear Southwest 55 Backpack
Weight and specs compared for 2026 — and which one to choose.
Frameless 36L hyperlight thru-hiking pack made from ALUULA Graflyte fabric, with roll-top closure and included torso pad.
Check price Full details →Robust ultralight pack with Dyneema Composite Hybrid fabric and two aluminum stays. Ideal for technical terrain and variable weather conditions.
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Gossamer Gear Murmur 36 Hyperlight Backpack vs Hyperlite Mountain Gear Southwest 55 Backpack: which should you buy?
If saving weight is your priority, the Gossamer Gear Murmur 36 Hyperlight Backpack wins — at 225 g it is 625 g (74%) lighter than the Hyperlite Mountain Gear Southwest 55 Backpack (850 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.