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
11.5 l (3.04 gal)
Total Volume
51.5 l (13.60 gal)
Weight
848 g (1.87 lb)
Maximum Load Capacity
18 kg (39.68 lb)
Torso Size Range
38 - 53 cm (1.2 - 1.7 ft)
Main Fabric
Dyneema Composite Fabric DCH150 3.9 oz/yd²
Fabric Type
Dyneema/DCF
Water Resistance
Highly water-resistant
Side Pocket Type
Zippered
Compression Straps
Top and bottom
Hydration Compatible
✓
Intended Use
Multi-day trekking, Thru-hiking/Ultralight
Volume/Weight Ratio f(x)
60.7 l/kg
Weight per Liter f(x)
16.5 g/l
Where to buy
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Category context Hiking Backpacks (407 products)
Weight
Lighter than average· mainstream zone 941–1980 g· ranked 25 of 196
848 g
33 g 6050 g
Total volume
Standard size· mainstream zone 38–60 l· ranked 181 of 407