Many leather, cloth, vinyl, and man-made leather are used as ingredients, and aluminum and iron are also used as materials. The shapes vary, but most of them are square box type and some of them are sacks. There are several sizes ranging from 20 centimeters to 70 to 80 centimeters. They vary in shape, structure, and size depending on their purpose, such as carrying them in hand, carrying them on shoulder, and dragging them with wheels underneath them.

Although the name ‘bag’ was originally derived from the Chinese word ‘carban’, there is no firm basis for its etymology. After World War II, the characteristics of bags were greatly influenced by American products and industry propaganda magazines, and as air travel was active, light things were required, and the materials were developed with the development of fasteners, vinyl and in leather, etc. Since the 1950s, vinyl and artificial leather as ingredients for bags have accounted for 60 percent of the total, as chemical materials are convenient for the foundation, vary in color, waterproof, and have indelible properties.