US Patent 7900757 Carrying bag having a detachable bottom portion

A carrying bag that includes a top portion having at least two side walls, a closable top, a closed bottom having an exterior bottom surface and an interior top compartment. The carrying bag also includes a detachable bottom portion having at least two side walls, a closed top having an exterior top surface, a closed bottom an interior bottom compartment and at least one access opening into the interior bottom compartment, and a compartmentalized structure having a plurality of individual compartments. A track system is included to attach the top portion to the detachable bottom portion, where the track system has a first component and a second component that slidingly engage one another.