T is Wang and Wang is T. More so for his men's clothes than his women's, the style (and the customer) of the secondary T by Alexander Wang collection and the Wang main-line collection meld. "Both brands are separate entities, but they really do work together," Wang says. "It is one brand at the end of the day."

The use of more refined materials for T this season—the line's first leather, suede, and neoprene pieces—only further closes the gap. As with the main Wang collection, the look is insistently sporty, with sweatshirts, hoodies, and jogging tops and shorts. But it's also pared back; there were none of the chunky zippers that previously defined the collection. And as with the main line, techie developments like waterproofing and bonding are key. "The technical aspect of what you can do to fabrics now is what's so interesting and each season we try to push it forward," says Wang. "With women's, we did a big experiment with that last Fall. It's exciting, what you can do. It's the next evolution in fashion."