Whether you're someone who would throw a blazer over your favorite pair of black slacks, or over a sequin dress to downplay the girly-ness of it, a white blazer is the item you probably didn't know you needed in your closet, especially for the holidays. This piece works year-round (as evidenced by jeans and pizza), but the gold button chain closure and dramatic tuxedo lapels make it an obvious choice—whether you're heading to a holiday party or casual lunch.