There are so many new designs of school bags on the market these days, and old designs are quickly falling out of favor. This clearly shows that a new design is really necessary for school bags, which will satisfy users' and producers' needs perfectly well.

The school bag issue did not arise until the last 50 years. In the past, the education system was different, and students were not required to carry a large number of books and, in some cases, a lunch box and water bottle too. Hence, in the past, an ordinary bag was used as a school bag, but in big cities like Bombay, the problem of a school bag becomes acute. Students in large cities travel to school from distant locations via local trains and buses. These local trains and buses are always crowded, and in such crowded places, a school bag obstructs free body movement. It has become very troublesome to travel through these vehicles.

Every student has to carry a large number of text books and exercise books. The number of books cannot be reduced because these are the minimum necessary books. The weight can be reduced only with school cooperation, i.e., by providing special lockers to students so that they can keep some of their things there. But all schools cannot do this, and so we have to think of a new system that will make students carry the books easily. We cannot reduce the weight, but we can make it easier to carry. From this point of view, various school bags are introduced to the market.

But most of the bags are not convenient. Some are heavy, and some are light. The light bags are flexible and spoil the books. Some bags are not water-proof and cannot be used in the rainy season. Most of the bags are costly. Cheap bags last for six months, while costlier bags last for 2-3 years, but their size is not suitable. Thus, not even a single bag in the market satisfies customers' needs, and hence, redesigning a school bag is very essential.