US Patent 8469249 Cart attachment for a backpack

A cart attachment for a backpack is described which includes a flap coupled to an upper back of a backpack. The cart attachment also includes a pair of hooks and loops strips to engage and disengage the flap. The cart attachment has two positions. In the first position, the flap is opened. In the second position, the flap is securely closed to accommodate a detachable wheeled cart. A second cart attachment may also be provided on a bottom portion of the backpack.