To have a complete overall effect, the pattern at the front fly has been needed to piece together processing. The small details have a very high requirement for the craftsmanship and patience of the workers. Each piece needs to spend time to cut the piece independently, and there's a lot of wastage. One such shirt is made of 1.5 times as much material as a normal shirt, which greatly increases the labor cost and material cost, but the perfect detail makes it all worth it.