John Galliano set out Friday to redefine 21st-century masculinity with corsets, sensual satins and vinyl trousers to "liberate" men from their sartorial shackles. The British designer's new collection for Maison Margiela at Paris men's fashion week not only blurred the lines between genders, but blew them away with shiny pink ribbon belts and a haute couture decadence that rarely treads the male catwalk. Inspired by genderless fashion boutiques now springing up in London and elsewhere, Galliano put out a podcast to explain how he is plotting to release men from the straitjackets of suits and streetwear. "I have been questioning...