A navy chalkdot pinstriped double breasted suit can be a stylish and sophisticated choice for formal occasions or business events. The black colour is classic and versatile, and the chalkdot pinstripes add a unique and modern touch of visual interest to the suit. A double breasted suit has a more formal look, with overlapping front flaps and two rows of buttons. To complete the look, you could pair the suit with a white dress shirt, a pair of black dress shoes, and a matching belt. You could also accessorize with a tie in a complementary color, such as silver or charcoal grey.