The main backpack storage compartment measures 17H X 12W X 4D. The outside of the backpack features 3 zippered compartments measuring: 10H X 10.5W X 1.5D compartment, 9W X 7.5H, & 10H X 10.5W pockets. On each sides of the backpack features elastic top mesh pockets perfect for carrying water bottles or small items.There is a dedicated body armor storage compartment for the front carrier and a pocket for the back body armor panel/plate. This compartment has a flap with magnetic fasteners to secure the compartment.The front body armor carrier has 1 webbing that runs down each of the backpack straps. All the wearer has to do is grab each 1 webbing with each hands and pull up and over the head to deploy the front carrier from inside the backpack to the front of the torso of the wearer. The 1 webbing straps can then be wrapped around the waist and buckles together.The front carrier can hold a 10 X 12 shooters cut soft body armor panel. The front body armor carrier can be adjusted for height for the proper coverage of the front torso. The front carrier can be detached/removed from the backpack. The top straps can be buckled together and placed over the head and neck to wear individually (like a bib) and separated from the backpack.The rear carrier is stationary pocket inside the backpack close to the wearer's back. It can hold hard or soft body armor plates/panels up to 16.5H X 11.5W.