When the weather's a little chilly, there's nothing better than wearing a pullover sweater. We're partial to cashmere (that cozy softness against your skin!) but totally open to shapes—a crewneck is such a classic, a cropped sweater is more modern and a poncho is a throwback that's never really gone out of style. There's something about a big chunky knit or an oversized sweater that makes you want to snuggle up to a fire with a hot cup of cocoa; add a favorite pair of jeans and boots and you've got the unofficial fall uniform of women everywhere. During the holiday season, over-the-top sweaters are required wearing for ugly Christmas sweater parties, but make sure you have a few cute ones on hand for office gatherings and tree trimmings.