Select color
Built Worldwide

Perfect for any adventure under the Big Sky!

Alpine Routes. Ski Touring. South American Vacation. The Big Sky is ready for big adventure. The signature 3Zip design opens the top and front of pack wide to easily load awkward items like a rope, rack of cams or Pelican Case and a top zippered pocket keeps smaller items close at hand.

  • 3-Zip design for quick access
  • Ports integrate your hydration reservoir into the pack
  • Separate lid pocket for quick access items
  • Large side water bottle pockets
  • Volume: 3000 cu-in (49 L)
  • Weight: 3 lbs 6 oz (1.6 kg)
  • Dimensions: 22”x12”x8.5” (56x31x21cm)
  • Frame System: X Frame
  • Country Of Manufacture: Other
  • Intended Use: Climbing, Hiking, Weekend Backpacking

Frequenty Asked Questions

We're moving to a kitted system so that we can design and build packs and frames that are optimized for integration based on the function of the product. There are some cool new things in the works. In the mean time, we may be able to accommodate pack only orders based on available inventory - contact MR Customer Service or call 406-585-1428

As much as we would like to be able to offer our military/LE/ firefighter customers a discount on our packs, we have government contracts in these markets that prevent us from doing so.

The only repair that we can offer on Dana Design products is a replacement back foam pad on packs with the ArcFlex body panel design. We can ship the foam to you and you can easily install it yourself without having to send the pack in to be repaired. Replacement back foam pads are $15.00 plus $5.00 for shipping. For any other Dana Design pack repairs, please contact Marmot or try the following reputable gear repair companies:

Marmot Warranty:

(888) 311-2900

Mon - Fri : 7:30am - 5pm (PST)

Boulder Mountain Repair:

2744 47th St.

Boulder, CO80301

(303) 499-3634

Rainy Pass Repair:

4415 Stone Way N.

Seattle, WA98103

(206) 523-8135


We are not set up to perform custom work on individual orders and no, we cannot build a pack for you in a custom color. If your concern is in regards to sizing please give us a call at 406-585-1428.

Also, please know that modifying your Mystery Ranch pack may void the lifetime warranty, so please think first before you start ripping straps off and cutting holes in your pack to make it more aerodynamic for winged flight.

First, start by washing your pack with hot water in the shower. Use a mild detergent like Dawn to get minor dirt and grime out of your pack. Dry the pack out of direct sunlight. DO NOT USE HARSH CHEMICALS TO CLEAN YOUR PACK. If you need to get odors/blood out of your hunting pack, please use Atsko Sport-Wash Laundry Detergent

If you're between sizes on the waist belt we recommend you size down. If you're between sizes on the yoke please give us a call at 406-585-1428.

Mystery Ranch accepts returns for a refund within 60 days of the original purchase date. Items must be returned in brand new, unused condition, and shipping charges are non-refundable. Please give us a call at 406-585-1428, and we can get you set up with a Return Authorization (RA#).

If you think that you qualify for a pro discount, please give us a call at 406-585-1428. Thanks!

If you are in need of a different size yoke or waist belt, please give us a call at 406-585-1428.

Why did you add a production facility in the Philippines?

We added a production facility at Clark Field in the Philippines because we needed the capacity to build for customers both domestic and abroad who don't require (Berry compliant) U.S. production and / or don't want to pay a premium for products built in the U.S.A

How do I know if the pack I want is made in the US or PI?

It will be noted on the product page on our website and you are always welcome to call us and ask if you don't see the "US" or "world" icons that denote production location.

Is the quality of the packs the same?

Yes. We still seek out the highest quality materials and construction methods available. We have rigorously run through every product and inspected them ourselves to certify the quality of a good matches our US standards. The quality is the same, so much that we have to mark the product so we don't confuse the two ourselves. Our distributors who have received product from the U.S. and from Clark Field have not been able to tell the difference without looking at the label.

How do you ensure the quality is the same?

Our sewers at Clark Field are trained using the same protocol we use in the United States. We spend the time to send our trainers and inspectors to the P.I. to consult and educate the sewers on our methods and quality standards. The short of it: PI production workers are trained by our people, they are our people.

Will Warranty or Repair procedures change?

No, our warranty and repair will remain the same regardless of production location. We hang our hat on being the most durable and comfortable packs on the market and that will not change.

For more information please contact MR Customer Service or call 406-585-1428

This is now my GO TO pack. I needed a pack that could handle all my needs. Day hikes, weekend hikes and search and rescue. I also needed a pack that would fit me. I am 6'5'' and have a long torso. For years I have struggled and spent hundreds of dollars trying to get a pack that will sit on hips and reach my shoulders. Well this is the one.

I got a large and upgraded to the live wing. It is a little big for just a day hike but I can just compress it down. I like having the option to fill it up and put it to work if I go out for a search and rescue mission. I also like that it can take the weight if I run a piece of webbing from a stretcher up and over the pack. Takes some weight off my arms and puts it to the pack and down to my hips. I have had bushwhack though some thick stuff and it still looks brand new. So glad I found this pack.