The Viper VX Buckle Up Charger Pack takes versatility to another level. This pack consists of one main compartment and one front compartment, both of which are expandable. It is VX Buckle Up compatible and will work in conjunction with any Viper VX Buckle Up system. With adjustable / removable shoulder straps and MOLLE attachment, this pack will fit into most loadout configurations. It is made of 700D Polytech material.