Calvin Klein Collection clothing was traditionally presented bi-annually during New York Fashion Week (womenswear) and Milan Fashion Week (menswear). For the fall/winter 2009-10 shows at New York Fashion Week in February 2009, "as a one-off event" and at the occasion of the brand's 40th anniversary, Calvin Klein Collection menswear returned to New York City "after years of showing in Milan". The spring/summer 2010 collection was shown in Milan again as it had always been clear that “the brand plans to return to the runway in Milan for future shows”. Under Raf Simons and with the new name, referring to the address of the company's headquarters in New York, the women's and men's collections were combined into one show during New York Fashion Week.