We love being first to a trend, and this season, all it takes is the right sweater to get ahead of the crowd. This winter's 'It' knits feature relaxed silhouettes, cashmere-like fabrics and rich mom details that upgrade your entire outfit. And with prices starting at just $6, it's no wonder these pullover picks are flying off the shelves. Whether you're running errands, hosting a dinner party or leading Monday's meeting, these 21 sweaters guarantee compliments.