This Adjustable Over-The-Door Back Pack Rack hardly requires any space at all and hooks onto most standard sized doors. A clip at the top and bottom hook onto your door to create one long storage piece.
These hooks not only accommodate backpacks, but also hats, clothes and many more items of varied sized and weight. The tough strap won't break or snag and is resistant to pulling. Each unit comes with 8 hooks. Can stretch to fit standard door height or to be mounted onto a wall.
(backpacks and closet not included)