Stocking up on warm sweaters this fall has never been easier, with tons of great oversize options in stores right now. But if you're built more on the petite side and feel swallowed up by the voluminous silhouette, take a cue from Olivia Palermo and cinch it. A slim belt wrapped around a chunky knit keeps the slouch in check while tucking everything in a bit as to not overwhelm the figure. The peplum-like silhouette that's created will accentuate waistlines without feeling restrictive. Choose a belt with a bit of shine, like a gold or silver one, to dress up the top, and always pair with a fitted bottom like Olivia's trousers like or a sleek pencil skirt.