Traditional suitcase, rigid trolley case provide good protection, soft trolley case can provide convenient fast accessing because of front pocket. Consumers need a good design that can take care of both functions. At present, the soft and hard combination of the trolley luggage in the market are fixed design, which cut a hole on the hard case body and stitch the soft bag on the suit case. But this design can be used not only as a rigid rod luggage separated when without any accessories, but also with rich and functional soft pocket parts ,hard pocket parts and other accessories to achieve personalized choice.Unique recessed cavity frame design, the outer bag is very good protection in the inside, making portable valuables to protect, to prevent all aspects of the impact, giving a strong sense of security. At the same time the framework design to ensure the edge of the soft bag crisp, to ensure the appearance of a sense of hard, security.