The double-breasted suit originated in England in the 18th century. It was the most popular suit style of the 18th century. It was also fitted by the European knights at the time. Its design originated because the man at that time had to wear a sword and often hung on the left side of the body. On the other hand, many small ornaments will be decorated, which is very easy to hold on to the clothes when the sword is dialed, so people have designed a row of buttons on the left to prevent hanging clothes. Double-breasted suit is the most charming place than when wearing a single row suit more formal calm atmosphere, and mix and match when it is relaxed and unrestrained, can make with more variability, more direct display of self personality characteristics .