"In Dressing the Man, Flusser writes, "The whole idea of a formal suit [i.e. tuxedo] is to distinguish itself from the notch-lapel business suit, not replicate it." Flusser declares that a dinner jacket with notched lapels is nothing short of a "sartorial oxymoron, convoluting both the form's aesthetic logic and its promise of timeless elegance." A proper dinner jacket should have peaked lapels, or, for slightly less formal occasions, a shawl collar. As for the white bow tie, that should only ever be worn with tails - hence the classic "white tie and tails" - and should never be satin."