The 2400 Southwest carries the same 40-liter base as its Junction and Porter siblings but distinguishes itself with three front pockets adding 11.5 liters of external volume, and a roll-top closure that brings it to 80 cm fully unrolled. At 842 grams, built from 3.9 oz/yd² Dyneema Composite Fabric, it sits in the middle of the 2400 lineup's weight range.
The triple front-pocket layout is unusual for an ultralight pack of this volume and points to a design priority on quick-access storage — wet gear, snacks, or a rain jacket — without opening the main roll-top. Hydration compatibility supports on-trail drinking, and the padded hip belt pockets add close-at-hand storage, though load lifters are absent, so it's tuned for moderate rather than maximum loads.
At around 21 grams per liter, the Southwest suits thru-hikers and multi-day trekkers who value pocket organization over raw carrying capacity — a pack built for frequent access rather than heavy hauling.
Specifications
Color
White, Black
Main Compartment Volume
40 l (10.57 gal)
Extension Volume
11.5 l (3.04 gal)
Total Volume
40 l (10.57 gal)
Weight
842 g (1.86 lb)
Dimensions ( Height x Width x Depth )
80 x 27.9 x 0 (2.6 x 11.0 x 0.0 ft)
Back System Type
Contact (padded)
Frame Type
Aluminum stays
Chest Strap
✓
Gender-Specific Fit
Unisex
Main Fabric
Dyneema Composite Fabric DCF 3.9 oz/yd²
Fabric Type
Dyneema/DCF
Main Compartment Access
Roll-top
Front Pocket Count
1
Side Pocket Count
0
Ice Axe Loops
0
Hydration Compatible
✓
Intended Use
Thru-hiking/Ultralight, Multi-day trekking
Volume/Weight Ratio f(x)
47.5 l/kg
Weight per Liter f(x)
21.1 g/l
Pack Style
Ultralight pack
Hip Belt Type
Padded with pockets
Where to buy
No offers available for this product yet.
Category context Hiking Backpacks (404 products)
Weight
Standard weight· mainstream zone 573–1290 g· ranked 58 of 129
842 g
33 g 6050 g
Total volume
Standard size· mainstream zone 38–60 l· ranked 271 of 404