Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Tartan Twill Workshirt - This hardy workshirt is crafted from cotton twill and features utility pockets and a traditional tartan pattern. Point collar. Applied buttoned placket. Genuine horn fisheye buttons. Long sleeves with buttoned barrel cuffs. Buttoned-flap patch pockets at the chest. "Polo" label at the left pocket. Split back yoke ensures smooth, contoured shoulders. 100% cotton. Machine washable. Imported.