The ultralight Arc Haul Ultra backpack is our lightest backpack to date! Made from the strongest fabric we offer, "Ultra 100".
Against every one of the backpacks in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
The lightest of the 28–52 L backpacks on record is Gossamer Gear Murmur 36 Hyperlight Backpack (Aluula) at 7.9 oz — 372 g less.
Main models on the same shelf, compared with the Arc Haul Ultra 40L Backpack on the makers’ published figures; the tick on each bar is the Arc Haul Ultra 40L Backpack.
Gossamer Gear
Murmur 36 Hyperlight Backpack (Aluula)
13.1 oz lighter (372 g)
Hyperlite Mountain Gear
Summit 30
5.3 oz lighter (149 g)
Hyperlite Mountain Gear
Contour 35
4.9 oz lighter (138 g)
Not ranked: 23 with no published volume, 5 with no published weight.
See all 8 →
Zpacks
Arc Haul Ultra 50L Backpack
10 L more
0.4 oz heavier (11 g)
Gossamer Gear
Gorilla 50
10 L more
10.2 oz heavier (288 g)
Big Agnes
Sweetwater UL 43L
3 L more
1.18 lb heavier (533 g)
Not ranked: 27 with no published volume.
See all 7 →Ultralight backpacks ranked by maker-published weight: 24 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.