These airline seats are not too well-designed.
The airline seats shown above are badly-designed. This is so primarily because the seats are made up of two flat sections - the seat itself and the backrest. Both are not curved according to the shape of the human body, but are almost flat, making the seat uncomfortable to sit in, even for short flights. The seats come with armrests on each side. These are not badly-designed. The design of the seats can be improved by making them curved, according to the shape of the human body, and by making other refinements, such as spacing them slightly further apart, giving each passenger more space, adding a footrest and increasing the size of the overhead compartments.