Calvin Klein Boxy Twill Overshirt in Fossil. This Calvin Klein Cotton Blend Overshit in Grey is a premium men's style. It features a modern, sharp, and innovative design with a cotton nylon twill fabric. The overshirt has a soft, crisp feel with a boxy fit, pointed collar, and long sleeves. It also includes flap pockets at the chest, a buttoned placket, a straight hem, larger sized buttons, and the Calvin Klein monogram logo on the chest. Made from 71% cotton and 29% nylon. Model no. P-5595-492--