Yves Saint Laurent revolutionized women's wear in the 1970s, putting pants in couture shows for the first time. His safari jackets, "le smoking" suits, Russian-boho collections, and tailored Belle de Jour suits are considered fashion landmarks—so his are big shoes to fill. Hedi Slimane, successor to the controversial Stefano Pilati in 2012, has managed to stir things up in his brief tenure, renaming the brand and nose-tweaking fashion journalists. Despite the controversy, there's no doubt he's returned the brand to its roots, drawing praise for his inspired collections. The menswear shop, at No. 32 rue du Faubourg St-Honoré, features new and sleekly beautiful riffs on Saint Laurent's classic satin-lapel tuxes.