The Ivory 'Modern Essential' Dinner Jacket by Jean Yves is an updated incarnation of the basic dinner jacket, perfect for any formal occasion. Featuring a one button, single-breasted front closure, self shawl lapels, self flap pockets, and fashioned from polyester in a modern cut for a trimmer and updated silhouette, this dinner jacket is versatile and classic enough for virtually any formal occasion. Sometimes the best formal wear is all about going back to the basics, and doing them well!