This pack is for the all-terrain hikers, the backcountry enthusiasts, the ones who don't just take the trail less traveled - they create it. With a streamlined design that's been re-imagined for increased durability and improved fit, our Octane 22 combines our new 3D vent mesh with a customizable fit system for peak performance on every adventure. Designed for performance, speed, and duration, this pack holds all of your essential gear and comes complete with the new Fusion 2L reservoir - our most lightweight and innovative hydration system ever. A true hike pack that packs a real punch.