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
The Arc Pro is what happens when a proven long-distance backpack gets stripped down and rebuilt around durability, simplicity, and effortless access. Delivering a technical look and serious trail performance, the Arc Pro is built with rugged Ultra 100X and Ultra TenX fabric for the demands of long-distance hiking. Veno
Weight and price against the backpacks of 35–65 L in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
The lightest of the 35–65 L backpacks on record is Gossamer Gear Murmur 36 Hyperlight Backpack (Aluula) at 7.9 oz — 386 g less.
Main models on the same shelf, compared with the Arc Pro 50L Backpack on the makers’ published figures; the tick on each bar is the Arc Pro 50L Backpack.
Gossamer Gear
Murmur 36 Hyperlight Backpack (Aluula)
13.6 oz lighter (386 g)
Zpacks
Women's Nero Classic Backpack
12.4 oz lighter (352 g)
Zpacks
Nero Classic Backpack
11.6 oz lighter (330 g)
Not ranked: 20 with no published volume, 2 with no published weight.
See all 11 →
Zpacks
Arc Haul Ultra 60L Backpack
10 L more
0.3 oz heavier (8 g)
Zpacks
Women's Arc Haul Ultra 60L Backpack
10 L more
0.5 oz lighter (14 g)
Zpacks
Women's Arc Zip Ultra 62L Backpack
12 L more
2.4 oz heavier (67 g)
Not ranked: 21 with no published volume.
See all 15 →Ultralight backpacks ranked by maker-published weight: 39 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.