The Hyperlite Mountain Gear Junction 40 Black is a black-colorway version of HMG's 40 L ultralight pack, built from Dyneema Composite Fabric DCH150 at 3.9 oz/yd². At 848 g with an 18 kg load rating, that works out to 16.5 g per liter of capacity — slightly more than the standard Junction 40, consistent with a somewhat heavier, tougher fabric on this variant.
Compared to the base version, this one has zippered side pockets instead of mesh, compression straps at both top and bottom rather than a removable set, and it drops hip belt pockets, shoulder strap pockets, and internal pockets entirely. The result is a simpler, cleaner profile with fewer built-in storage options — useful for hikers who organize gear into separate stuff sacks and don't need quick outside access.
The adjustable 38–53 cm torso range and the highly water-resistant fabric treatment carry over from the standard Junction 40. The pack is hydration-bladder compatible and targets the same group of thru-hikers and multi-day trekkers, with the added draw of a lower-profile black colorway.
Specifications
External Pockets Volume
3.04 gal (11.5 l)
Total Volume
13.60 gal (51.5 l)
Weight
1.87 lb (848 g)
Maximum Load Capacity
39.68 lb (18 kg)
Torso Size Range
1.2 - 1.7 ft (38 - 53 cm)
Main Fabric
Dyneema Woven Composite 3.9 (200D), Hardline with Dyneema, Large Hole Mesh