Air Flow Frame for your Backpack

Now here is a unique idea I never thought I needed.  This is I assume a 3D printed spacer for backpacks.  It as you can see goes between you and your backpack to provide some extra airflow.  As I said I did not know that I needed this but now that I know they make it I am thinking I just might like to try it out.  Kind of reminds me of the bedded seat pads on your car seats to do the same provide airflow.  What do you think is this something that you never new you would need.