The growing of the country day by day requires the changing and the ability to adapt. The traditional ao dai is not the exception. It is not because the design of the ao dai does not fit to the aesthetic point of view of modern Vietnamese. Actually, because the traditional ao dai is inconvenient in daily life, it must be “modernized”. Indeed, the design of the ao dai is no longer suitable for working or travelling on transportation. Moreover, the extreme weather in Viet Nam makes citizens uncomfortable when wearing the ao dai. Besides, it is wardrobe malfunction that causes the fear of wearing the ao dai in daily activities. Thus, people change the ao dai in its designs and materials so that wearers find it more comfortable and convenient.