My son sported this totally magnificent vest and tie set.  It gave just the right pop in his black suit.  The fit was a bit full for my son who is slender. He was not able to take off his jacket though because of the fullness of the cut. He will probably grow tall enough for the vest to become to short before he grows full enough to fill it and take off his jacket.  However, it is such an excellent look that we don't care he can leave his jacket open and let it's beauty be seen.