Maker’s warranty: Lifetime warranty against defects in materials and workmanship; covers original owner; modifications without ULA’s approval void it; tune-ups and repairs for a fee. ULA Equipment’s terms, read Oct 25, 2026
A 75 L (4,700 cu in) internal-frame pack with a twin-stay framesheet, a padded hipbelt and contoured shoulder straps, in ULA 400 Robic nylon ripstop. ULA lists it at 44.4 oz (1,259 g) and recommends loads under 40 lb (18 kg).
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 →
Against every one of the backpacks in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
Main models on the same shelf, compared with the Catalyst on the makers’ published figures; the tick on each bar is the Catalyst.
ULA Equipment
36L Patchless Ultra Dragonfly
13.4 oz lighter (380 g)
same list price
ULA Equipment
36L ULTRA Dragonfly
13.4 oz lighter (380 g)
same list price
Gossamer Gear
Mariposa 60 Backpack
11.0 oz lighter (313 g)
$4.99 less
Not ranked: 2 with no published weight.
See all 82 →
Osprey
Exos 48
$55 less
0.1 oz lighter (4 g)
KUIU
Divide 1500 Hunting Day Pack
$141 less
0.4 oz heavier (11 g)
Deuter
Aircontact Ultra 50+5
$25 less
0.4 oz heavier (11 g)
Not ranked: 34 with no published list price.
See all 53 →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.