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
It is really the best backpack I have ever owned. Lightweight, waterproof (tested under strong rain), a lot of space inside and very well balanced all the weight goes in the hips so the shoulders are always relaxed. Love it 🥰 – Daniele B., ★★★★★ The Arc Zip Ultra was built from the ground up for adventurers who need qu
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 — 81 g less.
Main models on the same shelf, compared with the Women's Arc Zip Ultra 62L Backpack on the makers’ published figures; the tick on each bar is the Women's Arc Zip Ultra 62L Backpack.
Zpacks
Women's Arc Haul Ultra 60L Backpack
2.9 oz lighter (81 g)
Zpacks
Arc Haul Ultra 50L Backpack
2.5 oz lighter (70 g)
Zpacks
Arc Haul Ultra 60L Backpack
2.1 oz lighter (59 g)
Not ranked: 20 with no published volume, 2 with no published weight.
See all 4 →
Zpacks
Arc Haul Ultra 70L Backpack
8 L more
1.7 oz lighter (48 g)
Hyperlite Mountain Gear
Halka 70
8 L more
1.65 lb heavier (748 g)
Osprey
Atmos AG 65 Backpack
3 L more
3.12 lb heavier (1,414 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.