A flexible storage system included in a vehicle interior comprises receiving elements configured on a surface facing the vehicle interior and different attachments that are made to be attached to the receiving elements. The receiving elements comprise a primary aperture connected to a slot that extends downwards towards a floor of the vehicle. Each of the attachments comprises at least one connecting element which has a shape that is complementary to the primary apertures of respective receiving elements and a shaft that connects the connecting element to the attachment. The attachments are detachably connected to the receiving elements when in use and stowed away when not in use. Thus, the storage system provides flexibility in that not only is it employed only when necessary, but it also provides a variety of storage attachments that are suited to different user needs.