A. This over the door shoe holder was probably designed because people need a place to store their shoes.
B. It is especially important that whoever makes the design takes into account the average shoe size of people. If the pockets dor the shoes are too small then people with larger feet would not be able to use it.
C. This over the door shoe holder is white with clear pockets on it. It has three metal hooks at the top to place over the door. There are 24 pockets which are enough for 12 pairs of shoes. Each pocket is the same size.
The pockets have to fit an average sized shoe: the designer probably researched the average shoe size of people and made each pocket fit that size of shoe.
The pockets have to be strong enough to hold up a boot or heavy shoe: the top of every pocket has a piece of fabric to add strength and stability
The material must be strong but also a little flexible to fit oddly shaped shoes: the material is clear plastic that is fairly sturdy but when you push on it there is some give.
It must be visually pleasing because the point of it is to provide organization: the white background makes it look uniform to the door which helps keep the design looking clean.