Stone Glacier Sky 5900 Pack

Item No. 18284-50057


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The Most Versatile Hunting Pack
The Sky 5900 Pack converts between a 4,300 cubic inch bivy mode to a 5,900 cubic inch sky mode. Press play to learn more about this innovative expandable pack.

Product Description

The Stone Glacier Sky 5900 Hunting Pack + Xcurve Frame offers plenty of convenient features and space for when you're out on your next hunt. With the Sky design, this hunting pack offers excellent compression with a large front panel zippered opening for quick access to nearly the entire pack. This hunting pack offers up to 4,300 cubic inches of volume in bivy mode and 5,900 cubic inches of volume with the Sky lid. Once you need more room, add the load shelf to extend the overall maximum volume to 8,000 cubic inches. With this volume versatility, this hunting pack can be used for day trips to extended trips. For quick access to your spotting scope, this hunting pack features a 22-inch front vertical pocket, while the large external open-top pockets are located on each side of the hunting pack to easily carry a tripod, water bottle, or the stock of a rifle. Make sure you're ready for hunting season with the Stone Glacier Sky 5900 Hunting Pack + Xcurve Frame. 

  • Hunting pack
  • Belt attachments
  • Hydration compatible
  • Heavy-duty YKK #10 zippers
  • 2,500+ cubic inch expandable load shelf
  • Full panel zip for access to the main bag
  • Front zipped pocket for quick access to essentials
  • Heavy-duty 1 in. Duraflex military approved buckles and webbing
  • Made in the USA
  • Load Rating: 150+ lbs.
  • Bag Weight: 2 lbs. 7.1 oz.
  • Bivy-Mode: 4,300 cubic inch
  • Material: Cordura 500, Xpac
  • Main Bag Capacity: 5,400 cubic inch
  • Weight w/ Medium Xcurve: 5 lbs. 7.1 oz.
Waist Belt Sizing:
  • Small: 28—30 in.
  • Medium: 31—36 in.
  • Large: 37 in. +

Additional Information

Customer Reviews

4.9 / 5.0
110 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 4 out of 5
Sky 5900
So far very impressed with quality and fit with this pack. Been doing short walks with 40 lbs. All is good. Big trips planned for summer before doing a number of sheep hunts this fall.....will keep you posted
March 29, 2021
Originally posted at
Rated 5 out of 5
First impression
So far very impressed. Super good quality! Very happy with my purchase. Light and strong.
March 10, 2021
Originally posted at
Rated 5 out of 5
Great Product
Stone Glacier products are built to last !
February 19, 2021
Originally posted at
Rated 4 out of 5
Legit best backpack I've used
I poured over videos and articles reviewing this backpack to see if its fully worth the price. I went to different stores, tried on many different bags and set up a pros/cons on all the bags. It took my 8 months to finally pull the trigger on buying this... and its great!! The ability to custom fit the bag is great and the versatility of the bag, frame and shelf is like no other bag I've tried. You can fit the bag to fit really well on your body which makes long hikes and elevation much easier with no hot spots and good weight distribution. Increased weight actually makes the bag feel better, it pushes the weight into and down your body, not backwards feeling like it will tip you over(I loaded 75lbs in bag and shelf.) Within the first week I put 1500ft and 29000ft vert hikes and a 9mile hike in to test this bag. I did a little bit of adjusting each hike but now I've got it set and it feels perfect. The only reason it doesn't get a 1000% 5 Star review is lack of extras. You have to buy extra a rain fly, camp or swing pockets, belt pockets etc. For the price, I feel like a rain fly would at least be included. Does this make me upset enough to not buy it or even recommend it?? Absolutely not!! Its an awesome pack and will be great for everything I plan on putting to it. Just would be nicer if it had those little "extra" features included in the higher price
February 18, 2021
Originally posted at
Rated 5 out of 5
Sky 5900
I haven’t tested the product to the limit yet, but the initial quality and design is excellent and look forward to putting it to the test in the backcountry
January 7, 2021
Originally posted at
Rated 5 out of 5
Sky review
Great pack. Super durable and fits well!
January 4, 2021
Originally posted at
Rated 5 out of 5
Sky 5900!!!!!!!!!
Awesome service, awesome product!
January 4, 2021
Originally posted at
Rated 5 out of 5
Awesome Pack
After a lot of research, I pulled the trigger on SGs Sky 5900 and I’m glad I did. The quality is great and after a few practice loads around the our field I can say it hauls the weight well. Love the length of all the straps. I’m pumped to load it up next by season with more than a bunch of rice!
December 16, 2020
Originally posted at
Rated 5 out of 5
Great company, great pack
December 15, 2020
Originally posted at
Rated 5 out of 5
5900 great pack
I love the bag configuration. Both frames also felt really good. I do wish that you offered a 24" frame for my short torso.
December 10, 2020
Originally posted at