Kangaroo Pocket Pouch backpack A removable foam pad provides T24 WG A removable foam pad provides just the right amount of rigidity for a pack of this size with the ability to use it as a sitting kneeling pad while an internal HDPE frame sheet provides structure A full clamshell opening provides quick access to vital items inside the pack with your choice of water repellent or standard reverse coil zippers This is our answer to feedback we have received from customers and active duty military personnel who wanted an additional full length zippered pouch that could insert into the rear kangaroo pocket of our Modular Chest Rig Kit Bag to carry their essentials close to the body Sitting flush and spanning the entire width of the main bag