Abstract: A hanger bag assembly comprises an elongate hanger rod including notches at opposite ends thereof for engaging a pair of parallel support rails such as those of a filing cabinet so that the hanger rod is supported by the rails, and a bag affixed to the hanger rod and adapted to be suspended therefrom when the hanger rod is supported on the support rails. The bag includes a closure device (e.g., a rib and groove closure arrangement or a zipper) which extends across the width of the bag and is spaced below the hanger rod, and which, when closed, provides full enclosure of the contents of the bag within the bag volume. In an important embodiment, the closure device is spaced a substantial distance below the hanger rod so as to relieve the effect thereon of any bag opening forces exerted at the top of the bag by the contents of the bag (e.g., a coiled guide wire).