Maker’s warranty: Limited warranty against manufacturing or material defect for the lifetime of the product; electronics up to two years; covers bought from an authorized Big Agnes retailer or direct; repair center; repair parts sold. Big Agnes’s terms, read Oct 25, 2026
A 60-liter backpacking pack from Big Agnes with running-vest-style straps and recycled nylon made from discarded fishing nets. An integrated frame sheet carries the load through the lumbar to an articulated hip belt. Big Agnes lists a packed weight of 1.36 kg for size small; torso sizes run 15 to 22 in.
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 42–78 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 lightest of the 42–78 L backpacks on record is Zpacks Women's Arc Haul Ultra 50L Backpack at 1.29 lb — 774 g less.
The cheapest is Naturehike Rock 2.0 Backpack 45L at $99.99 — $230 less and 160 g lighter.
Main models on the same shelf, compared with the Sweetwater UL 60L on the makers’ published figures; the tick on each bar is the Sweetwater UL 60L.
Gossamer Gear
Mariposa 60 Backpack
14.6 oz lighter (414 g)
$15 less
Big Agnes
Sweetwater UL 43L
8.1 oz lighter (230 g)
$50 less
Gossamer Gear
Gorilla 50
1.05 lb lighter (475 g)
$55 less
Not ranked: 20 with no published volume, 2 with no published weight.
See all 29 →
Kelty
Asher 55
$160 less
2.1 oz heavier (60 g)
Osprey
Exos 48
$65 less
3.7 oz lighter (105 g)
Naturehike
Rock 2.0 Backpack 45L
$230 less
5.6 oz lighter (160 g)
Not ranked: 29 with no published list price, 16 with no published volume.
See all 9 →
Hyperlite Mountain Gear
Halka 70
10 L more
2.3 oz heavier (66 g) · $195 more
Zpacks
Arc Zip Ultra 62L Backpack
2 L more
1.46 lb lighter (660 g)
Zpacks
Women's Arc Zip Ultra 62L Backpack
2 L more
1.50 lb lighter (682 g)
Not ranked: 21 with no published volume.
See all 9 →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.