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
ULA's frameless full-size pack: 50 L (3,051 cu in) of UltraGrid recycled nylon with a removable foam back panel. ULA lists it at 27.1 oz (768 g) and recommends loads under 25 lb (11.3 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 UltraGrid CDT on the makers’ published figures; the tick on each bar is the UltraGrid CDT.
Gossamer Gear
Fast Kumo 36 Fastpack
6.4 oz lighter (182 g)
$9.99 less
Hyperlite Mountain Gear
Summit 30
11.3 oz lighter (320 g)
$10 more
Gossamer Gear
Grit 28 Fastpack
10.9 oz lighter (309 g)
$20 less
Not ranked: 2 with no published weight.
See all 39 →
Gossamer Gear
Vagabond Jet
$70 less
2.6 oz lighter (74 g)
Sea to Summit
Big River Dry Backpack
$60 less
3.3 oz lighter (93 g)
NEMO
Resolve 15L Active Daypack
$40 less
3.8 oz heavier (107 g)
Not ranked: 34 with no published list price.
See all 20 →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.