Alexandre Mattiussi's Ami Designs Clothes for Regular Guys

A white dress shirt should be one of the simplest purchases in life. At least that’s what French fashion designer Alexandre Mattiussi believed a few years ago, when he was attending a friend’s wedding and needed a new one. “I thought it’d be cool to go to Dior or Saint Laurent, but I didn’t find one I liked. And I didn’t want to spend €300 [$418],” he says while sitting at a cafe terrace in the Marais district of Paris. “Eventually I got my shirt at Zara,” the Spanish fast-fashion chain. “I would have loved to have bought a better shirt.”