Front view of the Hyperlite Mountain Gear Junction 40 in White

Junction

4.8
Rated 4.8 out of 5 stars
347 Reviews
Volume
Torso Length
Color:White
Weight: 28.7 oz
Availability: In stock, ready to ship
Sale price$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 original packs and a year-after-year best-seller, the Junction pack combines lightweight, waterproof Dyneema® composite fabric with a proven, durable design, making it the ideal companion for any adventures, from weekend trips to thru hikes. This highly versatile pack helps decrease weight, increase comfort, and boost confidence in rugged terrain and changing weather.

KEY FEATURES:
  • The mesh center pocket offers visibility and drying for gear, while the solid-fabric sides provide abrasion protection. 
  • Side and over-the-top compression straps secure external gear for stability
  • Hydroport with an internal mesh sleeve ensures easy access to water for hydration on the go.

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

4.8
Rated 4.8 out of 5 stars
Based on 347 reviews
Total 5 star reviews: 297 Total 4 star reviews: 38 Total 3 star reviews: 5 Total 2 star reviews: 5 Total 1 star reviews: 2
97%would recommend these products
347 reviews
  • Doug J.
    Verified Buyer
    Age Range 55 - 64
    What activities did you use this product for? Backpacking, Skiing/Snowboarding
    What size pack did you order? Large
    41 minutes ago
    Age Range 55 - 64
    What activities did you use this product for? Backpacking, Skiing/Snowboarding
    What size pack did you order? Large
    Reviewing
    Junction
    Rated 5 out of 5 stars
    Love the Hyperlite packs!

    These days there are a lot of cottage-brand backpacks available and most of them are good. But I love the Hyperlite Junction for it's simplicity and design. It carries great, I love the sewn on shoulder straps and as long as you aren't packing a heavy load it is ultra comfortable.

  • Michele La r.
    Verified Buyer
    Age Range 45 - 54
    What activities did you use this product for? Backpacking, Day Hiking, Alpine/Ice Climbing
    What size pack did you order? Medium
    1 week ago
    Age Range 45 - 54
    What activities did you use this product for? Backpacking, Day Hiking, Alpine/Ice Climbing
    What size pack did you order? Medium
    Reviewing
    Junction
    Rated 5 out of 5 stars
    Minimalist, rugged perfection

    I own SO MANY backpacks including many HMG packs in this series and i find them to be my favorites if they fit you they are basically perfect. Well built, carry weight well, everything is exactly where it should be HMG have really perfected this design and it shows. Basically waterproof and they hold up extremely well I’m stilll using my original Southwest purchased more than 10 years ago or so most of all and it’s still going extemely strong. This one is a great all-around design and great for beach/wet environs anywhere you may have gear to dry out as you hike (or climb). I’m 6’1 with a 17-18 torso and a size M is perfect

  • Simon M.
    Verified Buyer
    Age Range 45 - 54
    What activities did you use this product for? Thru Hiking
    What size pack did you order? Large
    1 month ago
    Age Range 45 - 54
    What activities did you use this product for? Thru Hiking
    What size pack did you order? Large
    Reviewing
    Junction
    Rated 5 out of 5 stars
    The best

    An absolute masterpiece.

  • Jeffrey W.
    Verified Buyer
    Age Range 55 - 64
    What activities did you use this product for? Backpacking, Day Hiking
    What size pack did you order? Medium
    2 months ago
    Age Range 55 - 64
    What activities did you use this product for? Backpacking, Day Hiking
    What size pack did you order? Medium
    Reviewing
    Junction
    Rated 5 out of 5 stars
    Great functionality and fit

    Outstanding pack. Weight, layout, ease of use all spoton as was the fit.

  • Teddy
    Age Range 45 - 54
    What activities did you use this product for? Backpacking
    What size pack did you order? Medium
    5 months ago
    Age Range 45 - 54
    What activities did you use this product for? Backpacking
    What size pack did you order? Medium
    Reviewing
    Junction
    Rated 5 out of 5 stars
    1st lightweight backpack

    I have the junction 40 in black, this is my 3rd year owning it. I really enjoy everything about this pack. Sometimes in winter I wish I bought the 55 liter because you can roll it down to the 40 liter, but have that extra room for winter layers, or a longer food carry. I have been through rain and snow and never had any water leak in. I also use dry bags( hyperlite dry bags) for down and clothes. It’s a little expensive but you get what you pay for with this one. After 3 years there is a little wear at bottom near hip belt but that’s it. I also use a compactor bag inside. I can probably fit 4 or so days of food with all my other gear.

You may also like

Front View of Hyperlite Mountain Gear's Shoulder Pocket in White Front view of Hyperlite Mountain Gear's Shoulder Pocket in Black on hiker
Shoulder Pocket

Phone / Storage

Sale price$49.00
Front view of Hyperlite Mountain Gear's Windrider 40 Pack in White Hyperlite Mountain Gear Packs Windrider
Windrider

Backpacking/Thru Hiking

Sale priceFrom $349.00
Front view of two different sizes of the Hyperlite Mountain Gear Pods designed with a clamshell design A person pulling a Hyperlite Mountain Gear Pod out of their ultralight pack
Pods

Stackable Storage

Sale priceFrom $59.00
Front view of the Hyperlite Mountain Gear Camera Pod made from Dyneema® Composite Fabric Hiker removes a camera from the Hyperlite Mountain Gear Camera Pod as it is strapped to their chest
Camera Pod

Durable Camera Case

Sale priceFrom $119.00