In line with the site's recent health kick, and fusing the sleek urban aesthetics of the main line Theory brand with high-performance fabrics, Theory+ is a sportswear line that takes its name from the building number of its headquarters in New York's Meatpacking District, launching today exclusively via Net-a-Porter as its online retail partner.
Expect slim neoprene track pants, featherlight hooded jackets and sweaters that work just as well in the gym as on the city streets... 
Watch the concept's campaign video to support the project below, now: