Great EDC or 16L day hike backpack. Some expansion from the roll top-like design plus fold out beaver tail to pack things to the outside of the bag.

Waterproof x-pac exterior, aqua guard zippers and fully adjustable ‘Futura’ harness. Magnetic Fidlock buckles on the front buckle and sternum strap—see some minor scuffs on the front buckle.

Limited edition collaboration between Mystery Ranch and Carryology. Sold out and no longer in production.

Note: Patagucci patch not included! Comes with original patch pictured in the last photo.

Lots of info here,

https://www.carryology.com/projects/carry_collaborations/exclusive-release-mystery-ranch-x-carryology-spartanology/

From Mystery Ranch website:

The Mystery Ranch Spartan backpack has a cult following unlike no other and was the smallest military assault pack they produced. Only 1097 were ever made and backpack collectors around the globe search tirelessly to land just one of these ‘unicorns’. After nearly 10 years the search is over. Mystery Ranch and Carryology rejuvenates this classic as the SPARTANOLOGY. This limited-edition pack will be the new grail of packs.

Weight: 2.85 lbs Volume: 16L Dimensions: 18.75" x 10.5" x 8.75" Size: One Size