Spitfire MK II® Backpack PanelSpitfire MK II backpack panel adds day pack capacity to a compatible setup without the need for a separate backpack. It has a spacious main compartment for essential gear or a hydration bladder, a flat front zip pocket for smaller items and side pockets for a water bottle or similar equipment. The panel attaches with a zipper system and is compatible with the Spitfire & Spitfire MK II plate carrier can also be used separately with detachable shoulder