Front view of the Hyperlite Mountain Gear Junction 40 in White
Side view of the Hyperlite Mountain Gear Junction 40 in White showcasing the mesh center exterior pocket & Dyneema® fabric side pockets
Front view of the Hyperlite Mountain Gear Junction 40 in Black
Side view of the Hyperlite Mountain Gear Junction 40 in Black showcasing the mesh center exterior pocket & Dyneema® fabric side pockets with compression straps
Side view of the Hyperlite Mountain Gear Junction 40 in White showcasing the mesh center exterior pocket & Dyneema® fabric side pockets with compression straps
Side view of the Hyperlite Mountain Gear Junction 40 in Black showcasing the mesh center exterior pocket & Dyneema® fabric side pockets
Back view of the Hyperlite Mountain Gear Junction 40 in White with integrated 1/4” foam back panel pad
Back view of the Hyperlite Mountain Gear Junction 40 in Black with integrated 1/4” foam back panel pad
Back view of a 5'1" Model wearing the Hyperlite Mountain Gear Junction 40 in Black
Angled view of a 5'1" Model wearing the Hyperlite Mountain Gear Junction 40 in Black
Front View of a model wearing the Hyperlite Mountain Gear Junction 40 in Black showcasing the Dyneema® hip belt and shoulder straps
Front View of a model wearing the Hyperlite Mountain Gear Junction 40 in White showcasing the Dyneema® hip belt and shoulder straps
Angled view of a model wearing the Hyperlite Mountain Gear Junction 40 in White showcasing the exterior mesh center pocket and compression straps
Back view of a person modeling the Hyperlite Mountain Gear Junction 40 in White fully packed and using the roll top closure system
Close up of the shoulder straps made of hardline with Dyneema® with 3/8” closed cell foam and spacer mesh on the Hyperlite Mountain Gear Junction 40
Close up of one of the solid-panel Hardline with Dyneema® side pockets with a phone being stashed away on the Hyperlite Mountain Gear Junction 40
Hyperlite Mountain Gear Junction 40's exterior mesh pocket used to dry out equipment on the move
Close up of the Hyperlite Mountain Gear Junction 40's hydration system with an external tube running into the pack towards the hydration bladder
Overhead shot of the inside of the Hyperlite Mountain Gear Junction 40 showcasing the Internal 8" x 14” mesh sleeve for hydration bladder
Top view of the Hyperlite Mountain Gear Junction 40 in White showcasing the roll top closure system with compression straps
Close up of the Hyperlite Mountain Gear Badge Logo on the Dyneema® 50-denier DCH fabric of the Junction 40 in White
Front view of Hyperlite Mountain Gear's Junction 55 Pack in Black
Front view of Hyperlite Mountain Gear's Junction 55 Pack in White
Left side view of Hyperlite Mountain Gear's Junction 55 Pack in Black
Left side view of Hyperlite Mountain Gear's Junction 55 Pack in White
Right side view of Hyperlite Mountain Gear's Junction 55 Pack in Black
Right side view of Hyperlite Mountain Gear's Junction 55 Pack in White
Back view of Hyperlite Mountain Gear's Junction 55 Pack in White showing buckles and hip belt
Back view of Hyperlite Mountain Gear's Junction 55 Pack in Black showing buckles and hip belt
Interior view of Hyperlite Mountain Gear Junction 55 Pack in White showing inside mesh

Junction

Rated 4.8 out of 5
Based on 340 reviews

This pack is designed for on-trail, off-trail, and all-season environments, with one mesh and two solid exterior pockets for the best of both Southwest and Windrider features.

Volume
Torso Length
Color:White
Weight: 28.7 oz
Availability: In stock, ready to ship
$349.00

How to Choose a Pack Size

Your torso length, not your height, determines your pack size. We recommend the following to determine yours:

  1. Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).
  2. Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.
  3. 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.
  4. 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.
    • Small (15.0” - 17.0” torso)
    • Medium (17.0” - 19.0” torso)
    • Large (19.0” - 21.0” torso)
    • Tall (21.0”+ torso)
  5. 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.

WATCH THE VIDEO


How to Choose a Pack Size

How to Choose a Pack Size

Your torso length, not your height, determines your pack size. We recommend the following to determine yours:

  1. Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).
  2. Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.
  3. 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.
  4. 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.
    • Small (15.0” - 17.0” torso)
    • Medium (17.0” - 19.0” torso)
    • Large (19.0” - 21.0” torso)
    • Tall (21.0”+ torso)
  5. 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.

WATCH THE VIDEO


How to Choose a Pack Size

One of our three all-purpose backpacking models, this workhorse is designed for almost any backcountry activity, from on-trail hiking to the most demanding off-trail and all-season environments. Primary features include:

  • Identical to Southwest/Windrider but with a mesh center exterior pocket and two solid-fabric side exterior pockets
  • Two over the pocket compression straps for load security
  • D-shaped flat bottom keeps pack upright while loading/unloading
  • Roll-top closure with internal mesh sleeve & hydroport
  • White pack is 50-denier DCH fabric, Black pack is 150-denier

Product Walkthrough Video | Junction 40

WHY CHOOSE THE JUNCTION?

A white triangle logo on a black background.

SOLID & VERSATILE

One center mesh pocket for easy access and drying out wet clothing. Two additional side pockets for storing and protecting your gear

A white triangle logo on a black background.

WATERPROOF MATERIALS

Pair with our Stuff Sacks for a buttoned up, nearly waterproof kit

A white triangle logo on a black background.

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
average rating 4.8 out of 5
Based on 340 reviews
  • 5 Stars
    292 Reviews
  • 4 Stars
    37 Reviews
  • 3 Stars
    5 Reviews
  • 2 Stars
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  • 1 Star
    1 Review
98% of reviewers would recommend this product to a friend
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Rated 3 out of 5
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Review posted
Reviewed by Ethan F.
Verified Buyer
Junction
Reviewing
Junction
Age Range
35 - 44
What activities did you use this product for?
  • Backpacking
  • Day Hiking
  • Thru Hiking
  • Skiing/Snowboarding
What size pack did you order?
Large
Rated 4 out of 5

Second hyperlite pack

Purchased the 40l Junction (white) after having the 55l Southwest (black) for several years. I simply wanted a smaller profile for travel and short trips. Great pack and happy with it. Like others have noted the mesh isn’t very stretchy but that’s really not a deal breaker. Recommended for sure.

My input as someone who’s been backpacking for 30 years: put the small stash pocket that you have on the bottom of the Unbound on this pack and perhaps replace the stiff mesh with something that expands the capacity way more and still breaths.

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Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Just Right and 2 is Too Big
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Rated 4 out of 5
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Review posted
Reviewed by Doug J.
Verified Buyer
Junction 55
Reviewing
Junction 55
Age Range
55 - 64
What activities did you use this product for?
  • Backpacking
  • Skiing/Snowboarding
What size pack did you order?
Large
Rated 5 out of 5

Enjoying the pack!

The Junction 55 is a great backpack. I won't typically use it for over 30 lbs, but under that it has proven to be very comfortable. Above 30 lbs, it seems to pull a bit heavy in the shoulders, neck. I'm between 5' 9" and 5' 10" and have a 19" torso and went with the large size which seems perfect. I've had a bit of tearing of the mesh in the back, so it needs to be handled kind of carefully.

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Rated 5 out of 5
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Review posted
Reviewed by Sarah M.
Verified Buyer
Junction 55
Reviewing
Junction 55
Age Range
45 - 54
What activities did you use this product for?
  • Backpacking
What size pack did you order?
Large
Rated 5 out of 5

Out of this world! Buy this pack!

I was introduced to this brand/pack by a hiking buddy my partner and I met in Yellowstone last year. Before our annual pilgrimage this season to Yellowstone, I decided to order the 55L Junction pack. For reference, I previously used a 55L Osprey pack. I can't say enough how much I love this pack! The packability, weight, comfort, and durability are truly out of this world. Plus, the material is both durable and waterproof, giving me peace of mind in all kinds of weather conditions.

I used to dread putting on my Osprey—hated struggling to get the straps over my shoulders, and the stiff hip belt would always get caught at the base of my back. Hoisting the pack from the ground onto my back was a challenge every time. The Junction, on the other hand, poses none of these issues. It's a breeze to hoist and strap on. The belt pockets are incredibly handy, and I can easily reach them while the pack is on (and a bear spray can will fit into the belt pocket with the nozzle sticking out although be mindful when hoisting you don’t “throw it out” if it’s not zipped enough). The elastic band for the hydration bladder on the shoulder strap is a thoughtful touch, placing the bite nozzle in the perfect spot. The outer storage pockets are spacious, yet they keep everything so secure that nothing falls out or shifts around when I bend over to snap pictures of flowers. And speaking of which, the pack doesn’t throw off my balance when I do that—whew, I love this pack!

The only downside is the…

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How was your pack fit?
Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Just Right and 2 is Too Big
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Rated 4 out of 5
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Review posted
Reviewed by Leif H.
Verified Buyer
Junction 55
Reviewing
Junction 55
Age Range
45 - 54
What activities did you use this product for?
  • Backpacking
  • Packrafting/Paddle
  • Thru Hiking
  • Fly Fishing
What size pack did you order?
Tall
Rated 5 out of 5

Great Pack

Best pack I own

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Rated 0 on a scale of minus 2 to 2, where minus 2 is Too Small, 0 is Just Right and 2 is Too Big
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Rated 5 out of 5
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Review posted
Reviewed by Perry
Junction 40
Reviewing
Junction 40
Rated 5 out of 5

5 Stars

Solid pack so far. Took it for 4 nights in Mexico and checked every box. Wouldn’t change a thing

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