The sweaters, cardigans, and pullovers are available in various coruscating shades to help you maintain your style. Theory was co-founded by Andrew Rosen and Elie Tahari with a vision to manufacture thoughtfully designed luxurious clothing for men and women. Theory brings you an assorted range of men’s and women’s pants, jackets, jumpsuits, dresses, blazers, shirts, jeans, bags, gloves, etc. Navy blue is a popular color that is always in trend.