September: The month in fashion

Kate Upton, Nina Agdal and Irina Shayk :: Getty Images

Kate Upton, Nina Agdal and Irina Shayk :: Getty Images

The summer is over. The bikinis have been put into hibernation until next summer. But that doesn't mean SI's Swimsuit models have disappeared - they've just moved from the beach to the red carpet. We collected the best pics from the last month of our models at parties, walking the red carpet and taking part in Fashion Week. If you think they look good in a two-piece, wait until you see them in formal attire.

Kate Upton :: Getty Images

Petra Nemcova :: Getty Images

Chrissy Teigen and Hannah Davis :: Getty Images

Julie Henderson :: Getty Images

Kate Upton and Christie Brinkley :: Getty Images

Jessica White :: Getty Images

Irina Shayk :: Getty Images

Kate Upton :: Getty Images

Julie Henderson :: Getty Images

Heidi Klum :: Getty Images

Jarah Mariano :: Getty Images

Nina Agdal :: Getty Images

Jessica White :: Getty Images

Carol Alt :: Getty Images

Anne V :: Getty Images

Selita Ebanks :: Getty Images

Shannan Click :: Getty Images

Julie Henderson :: Getty Images

Nina Agdal :: Getty Images

Chrissy Teigen :: Getty Images

Irina Shayk :: Getty Images

Anne V :: Getty Images

Natasha Barnard :: Getty Images

Alyssa Miller :: Getty Images

Kate Upton :: Getty Images

Chrissy Teigen and John Legend :: Getty Images

Selita Ebanks :: Getty Images

Heidi Klum :: Getty Images

Molly Sims :: Getty Images

Kate Upton :: Getty Images

Nina Agdal :: Getty Images

Alyssa Miller :: Getty Images