Anyone who's had a single cab truck can tell you that space runs out pretty quick, even if you can haul most anything in the back. That was the feedback we got on Kifaru's original Stryker, so we made the Stryker XL. They still didn't seem to scratch the itch for more capacity on this platform for some. So, Kifaru used their usual development system and listened to customers. The Kifaru Hellbender 25" ARK Frame Backpack adds an extra 350 inA^3 to internal storage and a large Bane style pocket on the outside for extra layers or wet gear. The sling is now made from Xpac to help with cleaning up after a successful hunt. The compression straps can move from the main bag to the back seam to keep your optics protected for the pack out. The front panel of the bag has a zippered pocket with key hook inside and a belt pouch matrix above the Bane style stash pocket. Each side has a water bottle pocket that works well with the front pocket compression strap for tripod...