TREND: Belted cardigan

WHO'S WEARING IT: Leighton Meester, Janet Jackson and Victoria Beckham

HOW TO WEAR IT: Cinching a slouchy cardi will not only make the casualwear look chic, it's a fantastic way to show off your shape, especially when you're wearing a patterned bottom layer. As for color, a caramel-hued belt will pop against fall's grays, while a classic black waistband oozes sophistication.

Shop the steals 'n' splurges below!