Back to Fitting Your Body Type SWEEP: The shortest train style, just brushing the floor. CHAPEL : Extends approximately one-and-a-half yards from the waistline. SEMI CATHEDRAL : Extends approximately two yards from the waistline. PANEL : A separate, foot-wide panel attached at the waist, usually one-and-a-half feet to four-and-a-half feet long and detachable.. CATHEDRAL: Extends approximately two-and-a-half yards from the waistline. MONARCH : The longest train style, it extends approximately three yards from the waistline. WATTEAU : A separate, foot-wide panel that is attached at the shoulders and falls loosely to the hem.