Compact Assault Pack 17" X 10" X 7.5" Main Compartment Interior Zippered 9"x5" Nylon Document Pocket Rear Padded Heat Release Cool Breathable Mesh Velcro Panel & Pocket - Hydration Bladder Compatible! (Bladder Not Included). 4 Zippered Compartments & Multiple Exterior and Interior Pockets for Organized Storage Small, compact bag. Perfect for use as a day-pack.