Back Panel X Large Adaptor This is a required accessory when mounting a Spiritus Systems Assault back Panel Core to a XL LV/119 Rear Plate Bag. The Back Panel XL Adapter zips in between your back panel and your rear plate bag giving you a perfect fit even with your XL bags. The adapter can also be used with a Size Large Plate bag as well, if you feel that the panel is too tight with your loaded configuration. Two zippers are included, one for each side. You can use just one, or both depending on how much of a load you have in the panel. NOTE: This component is an optional accessory to the Spiritus Systems LV/119 Plate Carrier system. An Assault Back Panel Core is Mfg: Spiritus Systems