Maker’s warranty: 2 year limited warranty against product failure caused by manufacturing, material and design defects; repaired when possible or replaced, case by case. Zpacks’s terms, read Oct 25, 2026
Quickly access your essentials on remote multi-day adventures with the zippered front loading panel on the ultralight Arc Zip Ultra ultralight backpack.
Weight and price against the backpacks of 44–80 L in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
The lightest of the 44–80 L backpacks on record is Zpacks Women's Arc Haul Ultra 60L Backpack at 1.32 lb — 103 g less.
Main models on the same shelf, compared with the Arc Zip Ultra 62L Backpack on the makers’ published figures; the tick on each bar is the Arc Zip Ultra 62L Backpack.
Zpacks
Women's Arc Haul Ultra 60L Backpack
3.6 oz lighter (103 g)
Zpacks
Arc Haul Ultra 50L Backpack
3.2 oz lighter (92 g)
Zpacks
Arc Haul Ultra 60L Backpack
2.9 oz lighter (81 g)
Not ranked: 20 with no published volume, 2 with no published weight.
See all 5 →
Zpacks
Arc Haul Ultra 70L Backpack
8 L more
2.5 oz lighter (70 g)
Hyperlite Mountain Gear
Halka 70
8 L more
1.60 lb heavier (726 g)
Osprey
Atmos AG 65 Backpack
3 L more
3.07 lb heavier (1,392 g)
Not ranked: 21 with no published volume.
See all 5 →Ultralight backpacks ranked by maker-published weight: 32 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.