Algorithm for Success Simon Spurr’s father remains his one true fashion hero. “He worked for an American bank in London,” the menswear designer says. To Spurr, his father’s late-’70s tailored silhouette will always remain in his mind. “He was wearing slim cut, single-breasted suits with narrow lapels and narrow shoulders with slim and pegged-leg pants, with vents in the back. They were understated and very plain silhouettes. That was the aesthetic that stuck in my mind as I started to develop my own sense of fashion.” We are in Spurr’s studio/office, which overlooks Chelsea Piers and the Hudson River skyline, discussing how Spurr got to where he is today: one of fashion’s most celebrated menswear designers. It is a quiet, cold, sunshiny day between Christmas and New Year’s...