Men's Wearhouse, looking to compete with the likes of Suitsupply, Indochino and J.Crew for Millennials, is expanding its line of custom clothing this year, and focusing on its higher-end Joseph Abboud line, an American-made suit manufacturer it acquired nearly two years ago, and for which it opened a New York flagship in April. "Custom clothing is new to us," says Men's Wearhouse CEO Doug Ewert, but it's "a big growth opportunity."