The Shay buttondown shirt, with its tailored yet roomy fit and collared silhouette, is a closet essential that elevates any look. The Shay buttondown shirt, with its tailored yet roomy fit and collared silhouette, is a closet essential that elevates any look. Established in 2003, Citizens of Humanity has been fueled by knowledge, creativity, and - above all - a love for denim. Since its start, the LA-based brand has remained committed to offering cutting-edge denim styles, unparalleled comfort, and flattering fits, all without compromising a standard for premium quality.