Informal is a costume code, typify with a suit as well as necktie. On the scale of custom, Tuxedo suits informal attire is more formal than 2 Button Tuxedos casual but less formal than 3 Button Tuxedos semi-formal. It is more presentational when compared to Tuxedo suits semi-casual, but offer more room for individual expression than Tuxedos suit semi-formal dress. Tuxedos suit Informal should not be confused with Tuxedos casual, not even elegant casual — in loose common practice, a lot of people refer to Tuxeods suit informal dress as formal as well as formal dress (in the technological sense — that is, black tie, white tie, and similar) as very Tuxedos suit formal; this usage is not conventional by authorities on dress codes.