There was a period in the early ’90s when Marc Jacobs’s wardrobe was almost completely defined by A.P.C. “It was just so cool,” he remembers now. “It was so kind of normal and nothing—but the perfect kind of normal and nothing.”What A.P.C. Jacobs fell in love with the stiff indigo denims (the perfect straight fit, he explains, with exactly the right rise on the waist), the hues of the turtlenecks, the music that played in the store; Touitou, meanwhile, became enamored of Jacobs’s covert cynicism, obsession with materials, and ability to encapsulate the zeitgeist. “I think both his brand and mine were part of a movement, even if we were doing things totally differently,” says Touitou.