I thought it was love at first sight. I spotted an oversize white sweater on a mannequin at Zara, styled with the sleeves rolled up and a knee-length skirt. It looked exactly right: comfortably stylish. Like something I'd live in all winter long. But when I tried it on, it looked more like I was wearing one of my husband's sweaters. Not right at all. When I left the fitting room, I concluded that I definitely need a oversize sweater but not one that is so extra large it looks like a baggy sack. Finding one that strikes the extra large-but-flattering balance is no easy feat, but I managed to find a few such as this J.Crew, this Equipment, this Gucci and this L'Agence, along with a few snaps of girls, who pull off this big-next-season look with aplomb.