What to Wear in Cocktail Attire for Men If you truly have no idea what to wear (or how to wear it), the old standby navy, gray, or black suit with a white dress shirt and dress shoes is a no-brainer.

Its sleeveless model with a Mandarin collar gives a comfortable fit while retaining the style of a Nehru jacket. Provided with a full button placket closure, it's easy for you to wear.