THE DINNER TROUSERPleated trouser are compatible with a cummerbund or waistcoat. Sitting is certainly a lot easier and more comfortable in pleated trouser than plain front. Their waistband must be covered, so they need to fit as high on the waist as is comfortable. Suspenders help to maintain their correct height, and keep their pleats lying flat under the waist covering. The side seams are trimmed with one band of facing (as opposed to white-tie, with two rows), which should confirm in texture to the lapel facings-satin for satin, braided for grosgrain.
Dinner trouser pockets are usually cut on the side seam. Vertical pockets are dressier and easier to get to, especially if their top section is partially covered by a weskit or cummerbund. Better dress vests have side slits to facilitate pocket access. Dress trousers never take cuffs. How could they with their side-seam decoration? A wonderful depiction of this tradition can be enjoyed watching the Fred Astaire classic Shall We Dance.