The necktie, that ultimate signifier of being "dressed up," will always have a home in a man's wardrobe. But it's taking a breather this season, in favor of a simple shirt buttoned all the way to the top. Dolce and Gabbana, who have long been major purveyors of the skinny black tie, opted to go without in presenting their luxe cream and black three-piece suits. Meanwhile, the streaker who crashed the runway after the show went without his entire outfit. Stefano Pilati's quietly sophisticated collection, his first for the luxury fabric and tailoring house of Ermenegildo Zegna, featured jackets and pants in contrasting jacquards, again sans tie. And Jil Sander's trim cropped trousers and fitted jackets were shown in a pared-down fashion, with just a simple shirt. Sometimes, less is more.