1.COMPARTMENTS - Tactical Backpack featuring 16 individual inner and outer compartments, a roomy main storage area, a hydration pocket, padded book compartment, large sunglass pouch compartment, and a CCW Conceal Carry Weapon compartment. 2.DURABLE - Made from durable 1050D nylon, this military backpack is water-resistant and features self-repairing YKK zippers. Equipped with an adjustable height sternum strap, two external compression straps and contour yoke shoulder strap system. 3.TACTICAL - Molle compatible with the wrap-around molle/ slick stick web platform, internal multi-slot admin compartment, hook and loop nametape, flag patches and glove-friendly pull tabs perfect for first responders, PPE, military, or patrol. 4.DIMENSIONS Main Compartment 18' x 11' x 6.5', Front Admin Pocket 12' x 9' x 1.75', Hydration Pocket 16.5' x 10', Total Capacity 1476 cubic inch / 24 liter total. Weight: 2.6 lbs.