Maker’s warranty: Manufacturing defects, within one year, within the United States; covers the purchaser; discounted third-party repair (Rugged Thread). Gossamer Gear’s terms, read Oct 25, 2026
A 36 L frameless pack in waterproof ALUULA Graflyte V52 fabric with a UHMWPE stretch mesh front pocket. Gossamer Gear lists it at 7.9 oz.
Figures with a source link to the page they were read from, with the date we checked it.How we get these figures →Wrong figure? Tell us
Packs are sized by torso length, not height. How to measure yours →
Weight and price against the backpacks of 26–46 L in the RidgeNote register with a published figure; other figures against every one of the backpacks. Manufacturer-listed; sources and dates are on this page.
The cheapest of the 26–46 L backpacks is Naturehike Rock 2.0 Backpack 45L at $99.99 — $250 less and 975 g heavier.
Main models on the same shelf, compared with the Murmur 36 Hyperlight Backpack (Aluula) on the makers’ published figures; the tick on each bar is the Murmur 36 Hyperlight Backpack (Aluula).
Nothing on record is lighter than the Gossamer Gear Murmur 36 Hyperlight Backpack (Aluula) among 25–47 L backpacks.
Not ranked: 20 with no published volume, 1 with no published weight.
Hyperlite Mountain Gear
Summit 30
$140 less
7.9 oz heavier (223 g)
Gossamer Gear
Grit 28 Fastpack
$170 less
8.3 oz heavier (234 g)
Gossamer Gear
Skala 38 Backpack
$125 less
12.5 oz heavier (353 g)
Not ranked: 18 with no published list price, 16 with no published volume.
See all 25 →
Zpacks
Women's Arc Haul Ultra 40L Backpack
4 L more
12.3 oz heavier (350 g)
Gossamer Gear
Skala 38 Backpack
2 L more
12.5 oz heavier (353 g) · $125 less
Zpacks
Arc Haul Ultra 40L Backpack
4 L more
13.1 oz heavier (372 g)
Not ranked: 21 with no published volume.
See all 11 →Ultralight backpacks ranked by maker-published weight: 40 models. Lightest: Gossamer Gear Murmur 36 Hyperlight Backpack (Aluula) at 7.9 oz (225 g).
Six backpacking packs from 45 to 68 L: how to fit one, then their published volume, frame, load range, weight and list price, with a reason to skip each.