The new business chic swaps restrained suit jackets for spirited sweaters. Crewneck or V-neck, worn open or closed, solid or patternedthese lively knits look both approachable and office-appropriate. Plus, they're comfortable! Mrs. Obama wore a Junya Watanabe cardigan to the Office of Personnel Management.
Left: Cashmere, J. Crew, $178; jcrew.com.Read MoreLess