Founded in 1997, New York-based designer Andrew Rosen created Theory with a focus on contemporary casualwear with a distinct edge. Boasting well-tailored separates, Rosen established the label on the basis that men and women should feel comfortable in modern clothing. Superior quality, clean silhouettes and an exceptional fit underpin each collection with a nod to trademark craftsmanship. Add directional flair to ensembles with men's Theory pants. From wool-blend sweatpants to corduroy and knit designs, these contemporary pieces are perfect for updating modern closets.