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
The 36L Patchless Ultra Dragonfly is the larger version of ULA's Dragonfly travel pack in ULTRA fabric, without the logo patch. ULA lists 36 L (2,197 cu in), carry-on dimensions of 20.5 x 12 x 7.5 in, a 17 in laptop sleeve, UltraStretch front and side pockets, a quick-access top pocket and YKK AquaGuard water-resistant zippers, with a maximum load of 25 lb.
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 26–46 L in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
The lightest of the 26–46 L backpacks on record is Gossamer Gear Murmur 36 Hyperlight Backpack (Aluula) at 7.9 oz — 654 g less for $30 more.
The cheapest is Naturehike Rock 2.0 Backpack 45L at $99.99 — $220 less and 321 g heavier.
Main models on the same shelf, compared with the 36L Patchless Ultra Dragonfly on the makers’ published figures; the tick on each bar is the 36L Patchless Ultra Dragonfly.
ULA Equipment
30L Patchless Ultra Dragonfly
3.6 oz lighter (102 g)
$30 less
Gossamer Gear
Murmur 36 Hyperlight Backpack (Aluula)
1.44 lb lighter (654 g)
$30 more
Hyperlite Mountain Gear
Contour 35
14.8 oz lighter (420 g)
$30 more
Not ranked: 20 with no published volume, 1 with no published weight.
See all 25 →
Big Agnes
Causeway 28L
$120 less
1.0 oz heavier (28 g)
Big Agnes
Sweetwater UL 28L
$90 less
2.0 oz lighter (57 g)
ULA Equipment
30L Patchless Ultra Dragonfly
$30 less
3.6 oz lighter (102 g)
Not ranked: 18 with no published list price, 16 with no published volume.
See all 23 →
Hyperlite Mountain Gear
Prism 40
4 L more
3.6 oz heavier (102 g) · $130 more
Naturehike
45L Rock
9 L more
6.4 oz heavier (182 g)
Big Agnes
Sweetwater UL 43L
7 L more
8.9 oz heavier (251 g) · $40 less
Not ranked: 21 with no published volume.
See all 11 →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.