It's time to rethink one of the most ridiculed items in all of menswear—the Thanksgiving-through-New Year's knit. You know the one, it has a Fair Isle pattern and you begrudgingly wore it to Grandma's house in 1983. Well, thanks to brands like Gucci, Ferragamo, and J. Crew, those miniature woodland creatures and tiny flecks of snow have never looked so masculine. For the first time since your childhood, it's not only good to show your festive side, it's encouraged. So shelve the navy crewnecks until 2011 and get into the spirit—and sweater—of the season.