Maxpedition Vulture II
From the manufacturers website:
The Vulture-II™ 3-Day Backpack is designed for hauling lots of gear. Endowed with 2100 cubic inches (34 liters) of carry capacity, 3 generous compartments, and a wide bottom design; this is the backpack to pack it all into. However, like all Maxpedition® bags, size does not infringe on comfort.
The Vulture II holds true to the Maxpedition ergonomic standard and comes equipped with comfortable back padding, curvaceous backpack straps, and concealable chest & waist straps.
The Vulture II also accommodates up to 100oz/3L hydration reservoir with bi-directional tube port (not included), and has plenty of exterior PALS webbing for attaching Maxpedition pouches and accessories. Great for longer hikes, deployment, or buggin’ out.