The FILBE is the latest Generation of Improved Load bearing pack design. It offers advances in terms of load carrying capabilities, modularity and comfort. The optimization of the frame, hip belt and shoulder harness system maximizes the ability to carry heavy loads efficiently, while minimizing the burden of weight. The end result is improved overall system compatibility and increased comfort for the user. This new pack design offers greater carrying capacity with the main pack accommodating 5000 Cubic inches of gear. This particular pack is the rare and highly sought after model made by Propper International. This bag is absolutely genuine.