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HMG 3400 Junction

55 liters | from 907g | Load up to 18kg | 50D/150D Dyneema®

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419,00 €

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HMG 3400 Junction - is built upon the time-tested, ultralight Windrider and Southwest, with a best of both worlds to give you ultimate versatility. It's a roll-top ultralight backpack built with 100% waterproof Dyneema® Composite Fabrics with different kind of external pockets.

The 3400 Junction is identical to Hyperlite’s 3400 Southwest and 3400 Windrider backpacks with the exception of its external pockets. It features two solid side pockets constructed of Dyneema® Hardline to provide an extra durability when hiking off-trail, and an external center mesh pocket to give visibility to the contents and to dry out damp gear.

The 3400 Junction has a large main compartment with an internal hydration system sleeve, side water bottle pockets, a mesh front pocket, and large hip belt pockets. The advantage of a roll-top pack is that you can roll down the extension collar to reduce its volume when it’s not needed and if you can’t decide between the 2400 or 3400 packs. 

The 3400 (55L) volume size is ideal for weekend, section, or thru hikes where resupply points are less frequent, or when trip needs demand flexibility for extra equipment. When the extra volume is not in use, the 3400’s top can roll down enough to make the overall size of the pack similar to the 2400, but that additional space can come in pretty handy when you need it.

HMG 3400 Junction

MATERIALSWhite: DCH50 (Main Body) & DCH150 (Bottom)
Black: DCH150 (Main Body & Bottom)
INTERNAL VOLUME55L | 3400 cu in.
EXTERNAL VOLUME9.8L | 600 cu in.
White: 907.2 g | 2.0 lbs | 32.0 oz. 
Black:  997.9 g | 2.2 lbs | 35.2 oz.
*Average weight based on size medium
LOAD CAPACITYUp to 18kg | 40 lbs
BACK WIDTH26.7 cm | 10.5"
HEIGHT (FULLY UNROLLED)86.4 cm | 34.0"
TOP CIRCUMFERENCE101.6 cm | 40.0"


  • External Pockets: One external center mesh pocket with two solid-panel Hardline with Dyneema® pockets on the sides – dry gear faster with the middle pocket, protect or hide items in the sides
  • Zippered Pockets: Hardline with Dyneema® zippered pockets on hip belt with #5 YKK zipper
  • Internal Sleeve: Internal 8" x 14” mesh sleeve for hydration bladder
  • Top Closure: Roll-Top closure system
  • Hip Belt: Hardline with Dyneema® dual-density hip belt with 1/8” closed cell rigid foam, 1/4” closed cell foam and spacer mesh
  • Back:Integrated 1/4” foam back panel pad
  • Loops: Ice Axe Loop & Grab Loop
  • Side Straps: Side compression straps for horizontal compression
  • Top Compression Straps: Top Y-strap compression -- Designed to secure gear
  • Shoulder Straps: Hardline with Dyneema® shoulder straps with 3/8” closed cell foam and spacer mesh
  • Sternum Straps: Adjustable sternum strap with self-tensioning elastic
  • Buckles/Bungees: Four exterior triglide buckles for optional pack accessory straps
  • Stays: Two removable, contoured aluminum stays
  • Sealing: Seam tape on all vertical side seams and behind all sewn-on pack features
  • Pack Accessory Options: Shoulder Pocket, Versa, REpack, Stuff Sacks & Pods
  • Daisy Chains: Daisy chains on shoulder straps
  • Water Resistant: Yes
  • Compatible With: Pods, Drawstring or Roll-Top Stuff Sacks, Stuff Sack Pillow

If you don't know which one would best meet your needs, here is a short comparison of HMG backpacks

Hyperlite Mountain Gear manufactures a line of ultralight backpacks designed for everything from a quick day trip to an extended expedition. HMG backpacks are made of 100% waterproof Dyneema Composite Fabric with tape stitch lines. When used with ultralight HMG Dyneema stuff sacks, their gear provides a rainproof system for your excursion. Combined with ultralight shelter systems, you will feel like you can fly. Cushioned shoulder straps and hip belts, padded lumbar support and shaped aluminum stays, provide a super-comfortable fit. HMG lightweight Dyneema packs have been specifically designed for backpacking, mountain climbing, and ice climbing, but are suitable for cycling, pack rafting, day hiking or just getting around town.

Data sheet
Weightfrom 907 g
Warranty2 years
Made inMexico
  • Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).

  • Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.

  • Place your hands on your hips so you can feel your iliac crest, which serves as the “shelf” of your pelvic girdle. (It’s the first hard thing you feel when you run your fingers down from the sides of your ribcage.) Position your hands so your thumbs are reaching behind you.

  • Have your friend finish measuring at the point where the tape crosses an imaginary line drawn between your thumbs. This distance is your torso length.

Small38cm - 43cm15.0” - 17.0” 
Medium43cm - 48cm17.0” - 19.0” 
Large48cm - 53cm19.0” - 21.0”
Tall> 53cm> 21.0”

If your measurement falls right in between sizes (for example, if you have a 17.0” torso, so you are right on the line between a Small and a Medium), we suggest you choose the larger torso size.

HMG pack size

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