Front view of the Hyperlite Mountain Gear Junction 40 in White
Hyperlite Mountain Gear Packs Junction
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

Sale price$349.00
4.8
Rated 4.8 out of 5 stars
347 Reviews

"Rugged is as rugged does and this pack does it. Put it through some bushwhacking and the fabric pockets worked great." — James M.

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

Shipping & Fulfillment

We're committed to getting our adventure-ready gear from our headquarters in Maine straight to you.

Orders in the USA
Enjoy free shipping on all orders over $300. For all other orders, you can select your preferred shipping method during checkout.

International Orders
We ship worldwide! To make it easy, all available shipping options, delivery estimates, duties, and taxes for your location are calculated and displayed at checkout.

Our Process
The moment you place your order, we get to work preparing it for shipment. You’ll receive an email with tracking information as soon as your gear is on its way, so you can follow its journey.

For complete details, please review our full shipping policy.

Shipping & Fulfillment

We're committed to getting our adventure-ready gear from our headquarters in Maine straight to you.

Orders in the USA
Enjoy free shipping on all orders over $300. For all other orders, you can select your preferred shipping method during checkout.

International Orders
We ship worldwide! To make it easy, all available shipping options, delivery estimates, duties, and taxes for your location are calculated and displayed at checkout.

Our Process
The moment you place your order, we get to work preparing it for shipment. You’ll receive an email with tracking information as soon as your gear is on its way, so you can follow its journey.

For complete details, please review our full shipping policy.

No-Hassle Returns & Exchanges

Your satisfaction is our goal. If you're not happy with your purchase, our process is simple and uncomplicated.

You have 30 days from the purchase date to return any new, unused item for a full refund or exchange.

Even if you've already tried the gear out on an adventure, we want to help. Reach out to our customer service team, and we will see what we can do to find a solution that works for you.

To start a return or see the full details, visit our return policy page.

No-Hassle Returns & Exchanges

Your satisfaction is our goal. If you're not happy with your purchase, our process is simple and uncomplicated.

You have 30 days from the purchase date to return any new, unused item for a full refund or exchange.

Even if you've already tried the gear out on an adventure, we want to help. Reach out to our customer service team, and we will see what we can do to find a solution that works for you.

To start a return or see the full details, visit our return policy page.

Our Commitment to You

Your confidence in our gear is what drives us. When you choose Hyperlite Mountain Gear, you're not just buying a product; you're gaining a partner for your adventures.

We will always guarantee our products against manufacturing defects. Should an issue arise, we'll work with you to find the best solution.

Accidents happen on the trail, and we're here to help. Contact our dedicated support team to discuss our expert repair services for any other damages.

For complete details, you can review our full warranty policy.

Our Commitment to You

Your confidence in our gear is what drives us. When you choose Hyperlite Mountain Gear, you're not just buying a product; you're gaining a partner for your adventures.

We will always guarantee our products against manufacturing defects. Should an issue arise, we'll work with you to find the best solution.

Accidents happen on the trail, and we're here to help. Contact our dedicated support team to discuss our expert repair services for any other damages.

For complete details, you can review our full warranty policy.

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
    2 weeks 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
    3 weeks 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
    3 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.